US StockDetailed Quotes

Provided by Tiger Trade Technology Pte. Ltd.

Investar

26.88

+0.06000.22%

Post-market: 26.880.00000.00%17:43 EDT

Volume:67.06K

Turnover:1.81M

Market Cap:370.02M

PE:13.17

High:27.06

Open:27.01

Low:26.81

Close:26.82

52wk High:31.77

52wk Low:15.39

Shares:13.77M

Float Shares:9.09M

Volume Ratio:0.50

T/O Rate:0.74%

Dividend:0.44

Dividend Rate:1.62%

EPS(TTM):2.04

EPS(LYR):2.13

ROE:8.45%

ROA:0.82%

PB:1.37

PE(LYR):12.62

Loading ...

Overview Company News Filings

Beneficial Ownership Change

SC 13G/A [Amend] - Statement of acquisition of beneficial ownership by individuals

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Employee Stock Ownership

11-K - Annual report of employee stock purchase, savings and similar plans

Correspondence

CORRESP [Cover] - Correspondence

Major Issues Report

8-K - Current report

Major Issues Report

8-K - Current report

Quarterly Report

10-Q - Quarterly report [Sections 13 or 15(d)]

Major Issues Report

8-K - Current report

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers | Global Stocks, Options & Futures Trading App","description":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","keywords":"tiger brokers,tiger trade,tiger brokers singapore,broker online,stock trading in singapore,share trading singapore,brokerage firm singapore,trading app,stock broker singapore,stock trading platforms,trading account","social":{"ogDescription":"Tiger Brokers, one-stop investment in US stocks, SGX stocks, HK stocks, A-shares & other global assets. One of the best stock trading platforms in Singapore.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.be62fbe1.png","ogUrl":"https://www.itiger.com/stock/ISTR/filings?page=4"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"SGP","license":"TBSG","edition":"fundamental","symbol":"ISTR","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"ISTR\",,,,,undefined,":{"symbol":"ISTR","market":"US","secType":"STK","nameCN":"Investar","latestPrice":26.88,"timestamp":1774900800000,"preClose":26.82,"halted":0,"volume":67057,"hourTrading":{"tag":"盘后","latestPrice":26.88,"preClose":26.88,"latestTime":"17:43 EDT","volume":1508,"amount":40733.81,"timestamp":1774907039543,"change":0,"changeRate":0,"amplitude":0.00119},"delay":0,"changeRate":0.002237136465324337,"floatShares":9087024,"shares":13765800,"eps":2.0415,"marketStatus":"Not Yet Opened","change":0.06,"latestTime":"03-30 16:00:00 EDT","open":27.01,"high":27.06,"low":26.81,"amount":1805634.2498489998,"amplitude":0.009321,"askPrice":0,"askSize":0,"bidPrice":0,"bidSize":0,"shortable":3,"etf":0,"ttmEps":2.0415,"tradingStatus":0,"nextMarketStatus":{"tag":"Pre-Mkt","tradingStatus":1,"beginTime":1774944000000},"marketStatusCode":0,"adr":0,"adrRate":0,"listingDate":1404187200000,"exchange":"NASDAQ","adjPreClose":26.82,"dividendRate":0.016183,"preHourTrading":{"tag":"盘前","latestPrice":26.87,"preClose":26.82,"latestTime":"08:14 EDT","volume":104,"amount":2788.479928,"timestamp":1774872844076,"change":0.05,"changeRate":0.001864,"amplitude":0.002237},"postHourTrading":{"tag":"盘后","latestPrice":26.88,"preClose":26.88,"latestTime":"17:43 EDT","volume":1508,"amount":40733.81,"timestamp":1774907039543,"change":0,"changeRate":0,"amplitude":0.00119},"volumeRatio":0.497687},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"ISTR\",,,,,undefined,":{"symbol":"ISTR","floatShares":9087024,"roa":"0.82%","roe":"8.45%","lyrEps":2.13,"volumeRatio":0.497687,"shares":13765800,"dividePrice":0.435,"high":27.06,"amplitude":0.009321,"preClose":26.82,"low":26.81,"week52Low":15.39,"pbRate":"1.37","psRate":"3.96","week52High":31.77,"institutionHeld":0,"latestPrice":26.88,"eps":2.0415,"divideRate":0.016183,"volume":67057,"delay":0,"ttmEps":2.0415,"open":27.01,"prevYearClose":26.72,"prevWeekClose":26.82,"prevMonthClose":28.23,"prevQuarterClose":26.72,"fiveDayClose":27.11,"twentyDayClose":28.32,"sixtyDayClose":26.72,"dividendPayoutRate":0.19570087907935108,"dividendFrequency":"Q","dividendGrowthYears":10,"dividendGrowthRate":0.06097560975609762,"fiveYearAvgDividendRate":0.019015700024512357},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/ISTR\",params:#limit:5,,,undefined,":[{"date":"2026-03-31","symbol":"ISTR","amount":0.11,"announcedDate":"2026-03-19","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-03-31","defaultRemindTime":1774963800000,"name":"Investar Holding Corporation","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-04-30","payableDate":"2026-03-31","currency":"USD","dateTimestamp":1774929600000,"payDate":"2026-04-30"},{"market":"US","date":"2026-01-22","symbol":"ISTR","fiscalQuarterEnding":"2025/12","expectedEps":0.54,"name":null,"time":"Post Market","type":"earning","dateTimestamp":1769058000000,"reportTimeType":"post","actualEps":0.58},{"date":"2025-12-31","symbol":"ISTR","amount":0.11,"announcedDate":"2025-12-17","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2025-12-31","defaultRemindTime":1767191400000,"name":"Investar Holding Corporation","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-01-30","payableDate":"2025-12-31","currency":"USD","dateTimestamp":1767157200000,"payDate":"2026-01-30"},{"market":"US","date":"2025-10-20","symbol":"ISTR","fiscalQuarterEnding":"2025/09","expectedEps":0.48,"name":null,"time":"Pre-Market","type":"earning","dateTimestamp":1760932800000,"reportTimeType":"pre","actualEps":0.54},{"date":"2025-09-30","symbol":"ISTR","amount":0.11,"announcedDate":"2025-09-17","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2025-09-30","defaultRemindTime":1759239000000,"name":"Investar Holding Corporation","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2025-10-31","payableDate":"2025-09-30","currency":"USD","dateTimestamp":1759204800000,"payDate":"2025-10-31"}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"ISTR\",market:\"US\",,,undefined,":[{"executeDate":"2016-03-31","recordDate":"2016-04-04","paymentDate":"2016-04-29","value":0.009,"currency":"USD"},{"executeDate":"2016-06-29","recordDate":"2016-07-04","paymentDate":"2016-07-29","value":0.01,"currency":"USD"},{"executeDate":"2016-10-03","recordDate":"2016-10-05","paymentDate":"2016-10-31","value":0.011,"currency":"USD"},{"executeDate":"2016-12-30","recordDate":"2017-01-04","paymentDate":"2017-01-31","value":0.0121,"currency":"USD"},{"executeDate":"2017-03-27","recordDate":"2017-03-29","paymentDate":"2017-04-28","value":0.02,"currency":"USD"}],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"ISTR\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0,"buy":1,"hold":0,"sell":0,"strongSell":0,"meanLabel":"BUY","meanPercent":1,"analysts":2,"updateTime":1745467200000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/ISTR\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"ISTR","date":"2026-03-27","current":13.166789,"percent":0.828364,"low":3.5406,"twenty":6.358276,"median":10.278,"eighty":15.748689,"high":35.19815,"avg":11.956165,"sd":7.094016,"marketCap":371388175},"quantilePoints":[{"date":"2021-04-01","current":15.627023,"twenty":14.019349,"median":17.041855,"eighty":27.571207,"marketCap":217043719},{"date":"2021-04-09","current":15.750198,"twenty":14.018676,"median":16.991257,"eighty":27.513213,"marketCap":218754498},{"date":"2021-04-16","current":15.953864,"twenty":14.018676,"median":16.896018,"eighty":27.452577,"marketCap":221583220},{"date":"2021-04-23","current":12.009161,"twenty":14.008924,"median":16.857205,"eighty":27.415551,"marketCap":223862774},{"date":"2021-04-30","current":12.378674,"twenty":13.983309,"median":16.827654,"eighty":27.386112,"marketCap":230750860},{"date":"2021-05-07","current":12.217131,"twenty":13.951618,"median":16.76189,"eighty":27.334321,"marketCap":227739548},{"date":"2021-05-14","current":12.569065,"twenty":13.929024,"median":16.699846,"eighty":27.334321,"marketCap":234299947},{"date":"2021-05-21","current":12.731067,"twenty":13.915656,"median":16.645598,"eighty":27.334321,"marketCap":237319813},{"date":"2021-05-28","current":12.613755,"twenty":13.909309,"median":16.598492,"eighty":27.334321,"marketCap":235133013},{"date":"2021-06-04","current":13.183553,"twenty":13.886581,"median":16.547193,"eighty":27.334321,"marketCap":245754611},{"date":"2021-06-11","current":12.77017,"twenty":13.847941,"median":16.461465,"eighty":27.334321,"marketCap":238048746},{"date":"2021-06-18","current":12.379133,"twenty":13.820202,"median":16.432004,"eighty":27.334321,"marketCap":230759414},{"date":"2021-06-25","current":12.485272,"twenty":13.74807,"median":16.267488,"eighty":27.334321,"marketCap":232737947},{"date":"2021-07-02","current":12.853964,"twenty":13.720313,"median":16.131641,"eighty":27.334321,"marketCap":239610746},{"date":"2021-07-09","current":12.602583,"twenty":13.652876,"median":16.108299,"eighty":27.334321,"marketCap":234924747},{"date":"2021-07-16","current":12.602583,"twenty":13.472444,"median":16.053833,"eighty":27.334321,"marketCap":234924747},{"date":"2021-07-23","current":11.293504,"twenty":13.289839,"median":15.957277,"eighty":27.334321,"marketCap":226491232},{"date":"2021-07-30","current":11.397353,"twenty":13.193686,"median":15.928703,"eighty":27.334321,"marketCap":228573910},{"date":"2021-08-06","current":11.736351,"twenty":13.146438,"median":15.901618,"eighty":27.334321,"marketCap":235372520},{"date":"2021-08-13","current":11.788328,"twenty":12.946195,"median":15.892785,"eighty":27.334321,"marketCap":236414913},{"date":"2021-08-20","current":11.606409,"twenty":12.784695,"median":15.892785,"eighty":27.334321,"marketCap":232766535},{"date":"2021-08-27","current":11.720758,"twenty":12.731067,"median":15.892785,"eighty":27.334321,"marketCap":235059801},{"date":"2021-09-03","current":11.684374,"twenty":12.664032,"median":15.892785,"eighty":27.334321,"marketCap":234330126},{"date":"2021-09-10","current":11.284153,"twenty":12.608169,"median":15.892785,"eighty":27.334321,"marketCap":226303693},{"date":"2021-09-17","current":11.252967,"twenty":12.590757,"median":15.885975,"eighty":27.334321,"marketCap":225678257},{"date":"2021-09-24","current":11.252967,"twenty":12.564714,"median":15.885975,"eighty":27.334321,"marketCap":225678257},{"date":"2021-10-01","current":11.372514,"twenty":12.521392,"median":15.885975,"eighty":27.334321,"marketCap":228075763},{"date":"2021-10-08","current":11.26856,"twenty":12.479685,"median":15.885975,"eighty":27.334321,"marketCap":225990975},{"date":"2021-10-15","current":9.496153,"twenty":12.436113,"median":15.885975,"eighty":27.334321,"marketCap":190445347},{"date":"2021-10-22","current":34.321167,"twenty":12.378949,"median":15.892785,"eighty":27.341906,"marketCap":192335820},{"date":"2021-10-29","current":34.514968,"twenty":12.378949,"median":15.937272,"eighty":27.392205,"marketCap":193421879},{"date":"2021-11-05","current":34.01688,"twenty":12.378949,"median":15.953864,"eighty":27.447106,"marketCap":190630594},{"date":"2021-11-12","current":33.924593,"twenty":12.378949,"median":16.01421,"eighty":27.508099,"marketCap":190113419},{"date":"2021-11-19","current":33.481617,"twenty":12.378949,"median":16.061928,"eighty":27.529915,"marketCap":187630981},{"date":"2021-11-26","current":33.149385,"twenty":12.378949,"median":16.061928,"eighty":27.57332,"marketCap":185769152},{"date":"2021-12-03","current":32.983269,"twenty":12.378949,"median":16.061928,"eighty":27.62593,"marketCap":184838237},{"date":"2021-12-10","current":33.333958,"twenty":12.378949,"median":16.061928,"eighty":27.630086,"marketCap":186803501},{"date":"2021-12-17","current":32.300347,"twenty":12.378949,"median":16.061928,"eighty":27.69108,"marketCap":181011145},{"date":"2021-12-23","current":32.761781,"twenty":12.378949,"median":16.061928,"eighty":27.752073,"marketCap":183597018},{"date":"2021-12-31","current":33.979965,"twenty":12.378949,"median":16.061928,"eighty":27.795089,"marketCap":190423724},{"date":"2022-01-07","current":33.998422,"twenty":12.379041,"median":16.085113,"eighty":27.813067,"marketCap":190527159},{"date":"2022-01-14","current":34.865917,"twenty":12.379041,"median":16.085113,"eighty":27.852398,"marketCap":195388601},{"date":"2022-01-21","current":34.386027,"twenty":12.379041,"median":16.085113,"eighty":27.87462,"marketCap":192699293},{"date":"2022-01-28","current":24.695092,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":197560735},{"date":"2022-02-04","current":25.45146,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":203611679},{"date":"2022-02-11","current":25.664794,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":205318355},{"date":"2022-02-18","current":26.026817,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":208214534},{"date":"2022-02-25","current":26.013887,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":208111099},{"date":"2022-03-04","current":26.350051,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":210800407},{"date":"2022-03-11","current":25.19558,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":201564644},{"date":"2022-03-18","current":25.105366,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":200842929},{"date":"2022-03-25","current":24.705845,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":197646764},{"date":"2022-04-01","current":24.383651,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":195069211},{"date":"2022-04-08","current":24.319212,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":194553700},{"date":"2022-04-14","current":24.125896,"twenty":12.379041,"median":16.085113,"eighty":27.911597,"marketCap":193007168},{"date":"2022-04-22","current":15.591131,"twenty":12.379041,"median":16.059423,"eighty":27.911597,"marketCap":198677785},{"date":"2022-04-29","current":15.939039,"twenty":12.379041,"median":15.979783,"eighty":27.911597,"marketCap":203111176},{"date":"2022-05-06","current":16.145054,"twenty":12.379041,"median":15.979783,"eighty":27.911597,"marketCap":205736417},{"date":"2022-05-13","current":16.072328,"twenty":12.379041,"median":15.979783,"eighty":27.911597,"marketCap":204809677},{"date":"2022-05-20","current":16.072328,"twenty":12.379041,"median":15.979783,"eighty":27.911597,"marketCap":204809677},{"date":"2022-05-27","current":17.607643,"twenty":12.379041,"median":15.979783,"eighty":27.911597,"marketCap":224374201},{"date":"2022-06-03","current":18.278334,"twenty":12.379041,"median":15.979783,"eighty":27.911597,"marketCap":232920809},{"date":"2022-06-10","current":18.149044,"twenty":12.379041,"median":15.979783,"eighty":27.909708,"marketCap":231273270},{"date":"2022-06-17","current":17.454112,"twenty":12.379041,"median":15.979783,"eighty":27.883426,"marketCap":222417748},{"date":"2022-06-24","current":17.534918,"twenty":12.378949,"median":15.957277,"eighty":27.875179,"marketCap":223447460},{"date":"2022-07-01","current":18.076319,"twenty":12.378949,"median":15.957277,"eighty":27.831409,"marketCap":230346529},{"date":"2022-07-08","current":18.213689,"twenty":12.378949,"median":15.957277,"eighty":27.812164,"marketCap":232097039},{"date":"2022-07-15","current":17.712691,"twenty":12.378949,"median":15.957277,"eighty":27.764676,"marketCap":225712826},{"date":"2022-07-22","current":18.609639,"twenty":12.378949,"median":15.957277,"eighty":27.633692,"marketCap":237142627},{"date":"2022-07-29","current":13.369505,"twenty":12.378949,"median":15.939039,"eighty":27.62593,"marketCap":220048684},{"date":"2022-08-05","current":13.349112,"twenty":12.378949,"median":15.910599,"eighty":27.579661,"marketCap":219713029},{"date":"2022-08-12","current":13.933478,"twenty":12.378949,"median":15.837536,"eighty":27.558537,"marketCap":229331110},{"date":"2022-08-19","current":13.720428,"twenty":12.378949,"median":15.767887,"eighty":27.558537,"marketCap":225824518},{"date":"2022-08-26","current":13.33085,"twenty":12.378949,"median":15.736767,"eighty":27.558537,"marketCap":219412464},{"date":"2022-09-02","current":13.129974,"twenty":12.378949,"median":15.706647,"eighty":27.558537,"marketCap":216106249},{"date":"2022-09-09","current":12.752571,"twenty":12.378949,"median":15.702443,"eighty":27.558537,"marketCap":209894572},{"date":"2022-09-16","current":12.204728,"twenty":12.368795,"median":15.641202,"eighty":27.558537,"marketCap":200877621},{"date":"2022-09-23","current":12.332558,"twenty":12.357905,"median":15.60848,"eighty":27.522907,"marketCap":202981576},{"date":"2022-09-30","current":12.113421,"twenty":12.324129,"median":15.588847,"eighty":27.401345,"marketCap":199374796},{"date":"2022-10-07","current":12.362994,"twenty":12.28987,"median":15.538988,"eighty":26.94839,"marketCap":203482518},{"date":"2022-10-14","current":13.07519,"twenty":12.28987,"median":15.510314,"eighty":26.795669,"marketCap":215204554},{"date":"2022-10-21","current":12.509085,"twenty":12.28987,"median":15.490681,"eighty":26.566156,"marketCap":205887038},{"date":"2022-10-28","current":6.113542,"twenty":12.226717,"median":15.471632,"eighty":26.292064,"marketCap":206313712},{"date":"2022-11-04","current":6.450892,"twenty":12.185672,"median":15.457958,"eighty":26.026817,"marketCap":217698268},{"date":"2022-11-11","current":6.47434,"twenty":12.166652,"median":15.412147,"eighty":25.954412,"marketCap":218489539},{"date":"2022-11-18","current":6.491925,"twenty":12.105309,"median":15.383802,"eighty":25.641521,"marketCap":219082992},{"date":"2022-11-25","current":6.383482,"twenty":12.064856,"median":15.346703,"eighty":25.600148,"marketCap":215423366},{"date":"2022-12-02","current":6.401067,"twenty":11.953783,"median":15.310708,"eighty":25.284903,"marketCap":216016819},{"date":"2022-12-09","current":6.386413,"twenty":11.886254,"median":15.281259,"eighty":25.131142,"marketCap":215522275},{"date":"2022-12-16","current":6.307279,"twenty":11.867465,"median":15.248536,"eighty":24.919782,"marketCap":212851737},{"date":"2022-12-23","current":6.319002,"twenty":11.797491,"median":15.180588,"eighty":24.699393,"marketCap":213247372},{"date":"2022-12-30","current":6.31021,"twenty":11.78366,"median":15.090396,"eighty":24.633932,"marketCap":212950646},{"date":"2023-01-06","current":6.374689,"twenty":11.765236,"median":15.043718,"eighty":24.463154,"marketCap":215126640},{"date":"2023-01-13","current":6.316071,"twenty":11.750321,"median":14.877597,"eighty":24.357876,"marketCap":213148464},{"date":"2023-01-20","current":6.286763,"twenty":11.729258,"median":14.854963,"eighty":24.323608,"marketCap":212159376},{"date":"2023-01-27","current":5.906336,"twenty":11.696413,"median":14.787381,"eighty":24.288905,"marketCap":210909341},{"date":"2023-02-03","current":5.72055,"twenty":11.688078,"median":14.763649,"eighty":24.157583,"marketCap":204275103},{"date":"2023-02-10","current":5.637362,"twenty":11.667454,"median":14.70421,"eighty":24.115527,"marketCap":201304549},{"date":"2023-02-17","current":5.573584,"twenty":11.642004,"median":14.670292,"eighty":24.064298,"marketCap":199027124},{"date":"2023-02-24","current":5.520899,"twenty":11.632397,"median":14.665583,"eighty":24.019981,"marketCap":197145773},{"date":"2023-03-03","current":5.387798,"twenty":11.613945,"median":14.617237,"eighty":23.941474,"marketCap":192392887},{"date":"2023-03-10","current":5.076973,"twenty":11.587233,"median":14.588246,"eighty":23.745214,"marketCap":181293625},{"date":"2023-03-17","current":4.263658,"twenty":11.538839,"median":14.548093,"eighty":23.638852,"marketCap":152250961},{"date":"2023-03-24","current":4.219245,"twenty":11.505694,"median":14.507532,"eighty":23.443862,"marketCap":150665014},{"date":"2023-03-31","current":3.875043,"twenty":11.478321,"median":14.491943,"eighty":23.092862,"marketCap":138373921},{"date":"2023-04-06","current":3.773497,"twenty":11.455374,"median":14.47117,"eighty":22.938638,"marketCap":134747819},{"date":"2023-04-14","current":3.665366,"twenty":11.439044,"median":14.445429,"eighty":22.382013,"marketCap":130886566},{"date":"2023-04-21","current":4.020258,"twenty":11.395733,"median":14.385309,"eighty":21.921113,"marketCap":143559396},{"date":"2023-04-28","current":4.38189,"twenty":11.361274,"median":14.37296,"eighty":19.482982,"marketCap":128906436},{"date":"2023-05-05","current":3.816485,"twenty":11.312843,"median":14.330687,"eighty":19.16486,"marketCap":112273348},{"date":"2023-05-12","current":3.88716,"twenty":11.282074,"median":14.310203,"eighty":19.024982,"marketCap":114352484},{"date":"2023-05-19","current":3.87012,"twenty":11.252967,"median":14.274451,"eighty":18.945481,"marketCap":113851178},{"date":"2023-05-26","current":3.795954,"twenty":11.225122,"median":14.24352,"eighty":18.822555,"marketCap":111669361},{"date":"2023-06-02","current":3.782469,"twenty":11.211386,"median":14.232634,"eighty":18.710124,"marketCap":111272667},{"date":"2023-06-09","current":4.288146,"twenty":11.190207,"median":14.197007,"eighty":18.573706,"marketCap":126148692},{"date":"2023-06-16","current":3.897089,"twenty":11.173532,"median":14.168649,"eighty":18.434052,"marketCap":114644566},{"date":"2023-06-23","current":4.004967,"twenty":11.093937,"median":14.130189,"eighty":18.280774,"marketCap":117818118},{"date":"2023-06-30","current":4.072391,"twenty":10.993083,"median":14.114283,"eighty":18.221421,"marketCap":119801588},{"date":"2023-07-05","current":4.038679,"twenty":10.961897,"median":14.094067,"eighty":18.213689,"marketCap":118809853},{"date":"2023-07-12","current":3.883604,"twenty":10.920095,"median":14.064669,"eighty":18.079551,"marketCap":114247872},{"date":"2023-07-21","current":4.325229,"twenty":10.832196,"median":14.040812,"eighty":18.002923,"marketCap":127239600},{"date":"2023-07-28","current":5.215196,"twenty":10.765695,"median":14.022695,"eighty":17.877536,"marketCap":138520833},{"date":"2023-08-04","current":5.270717,"twenty":10.681613,"median":14.006386,"eighty":17.839153,"marketCap":139995504},{"date":"2023-08-11","current":5.326284,"twenty":10.57166,"median":13.980421,"eighty":17.750707,"marketCap":141471428},{"date":"2023-08-18","current":4.952445,"twenty":10.241801,"median":13.956265,"eighty":17.692158,"marketCap":131541884},{"date":"2023-08-25","current":4.874716,"twenty":9.932063,"median":13.93305,"eighty":17.633841,"marketCap":129477325},{"date":"2023-09-01","current":4.848806,"twenty":9.729691,"median":13.92607,"eighty":17.553085,"marketCap":128789139},{"date":"2023-09-08","current":4.626723,"twenty":9.589013,"median":13.915656,"eighty":17.524558,"marketCap":122890400},{"date":"2023-09-15","current":4.460161,"twenty":9.211288,"median":13.901913,"eighty":17.398263,"marketCap":118466345},{"date":"2023-09-22","current":4.326912,"twenty":8.687906,"median":13.86417,"eighty":17.248788,"marketCap":114927102},{"date":"2023-09-29","current":3.993788,"twenty":8.128678,"median":13.833006,"eighty":17.121469,"marketCap":106078993},{"date":"2023-10-06","current":4.119635,"twenty":7.925949,"median":13.817367,"eighty":17.06901,"marketCap":109421612},{"date":"2023-10-13","current":4.123336,"twenty":7.669938,"median":13.738859,"eighty":16.972184,"marketCap":109519924},{"date":"2023-10-20","current":4.004892,"twenty":7.157915,"median":13.718431,"eighty":16.8809,"marketCap":106373930},{"date":"2023-10-27","current":4.575215,"twenty":7.107538,"median":13.68498,"eighty":16.819457,"marketCap":100828583},{"date":"2023-11-03","current":4.708344,"twenty":6.67225,"median":13.612908,"eighty":16.699846,"marketCap":103762489},{"date":"2023-11-10","current":4.202715,"twenty":6.477271,"median":13.5439,"eighty":16.645598,"marketCap":92619439},{"date":"2023-11-17","current":4.495001,"twenty":6.450892,"median":13.43846,"eighty":16.58422,"marketCap":99060833},{"date":"2023-11-24","current":4.636715,"twenty":6.433307,"median":13.376853,"eighty":16.540113,"marketCap":102183933},{"date":"2023-12-01","current":4.87255,"twenty":6.398136,"median":13.30978,"eighty":16.448711,"marketCap":107381267},{"date":"2023-12-08","current":5.244298,"twenty":6.384068,"median":13.269979,"eighty":16.423162,"marketCap":115573843},{"date":"2023-12-15","current":6.248902,"twenty":6.376448,"median":13.200312,"eighty":16.314746,"marketCap":137713306},{"date":"2023-12-22","current":6.487883,"twenty":6.358276,"median":13.170109,"eighty":16.199917,"marketCap":142979962},{"date":"2023-12-29","current":6.678182,"twenty":6.354173,"median":13.120453,"eighty":16.147421,"marketCap":147173781},{"date":"2024-01-05","current":6.903886,"twenty":6.352414,"median":13.07519,"eighty":16.122558,"marketCap":152147845},{"date":"2024-01-12","current":7.28006,"twenty":6.352414,"median":12.90424,"eighty":16.10538,"marketCap":160437952},{"date":"2024-01-19","current":7.381848,"twenty":6.350656,"median":12.794099,"eighty":16.066088,"marketCap":162681157},{"date":"2024-01-26","current":7.532317,"twenty":6.352414,"median":12.77017,"eighty":16.010784,"marketCap":165997200},{"date":"2024-02-02","current":10.42724,"twenty":6.352414,"median":12.731067,"eighty":15.954547,"marketCap":173905515},{"date":"2024-02-09","current":10.000565,"twenty":6.352414,"median":12.675204,"eighty":15.939039,"marketCap":166789426},{"date":"2024-02-16","current":9.924582,"twenty":6.352414,"median":12.636916,"eighty":15.8909,"marketCap":165522177},{"date":"2024-02-23","current":9.638183,"twenty":6.352414,"median":12.608169,"eighty":15.81455,"marketCap":160745624},{"date":"2024-03-01","current":9.322561,"twenty":6.354173,"median":12.59141,"eighty":15.750198,"marketCap":155481668},{"date":"2024-03-08","current":9.392699,"twenty":6.354173,"median":12.569511,"eighty":15.736217,"marketCap":156651436},{"date":"2024-03-15","current":9.132084,"twenty":6.354173,"median":12.552252,"eighty":15.706647,"marketCap":152304899},{"date":"2024-03-22","current":9.513321,"twenty":6.354173,"median":12.511144,"eighty":15.643612,"marketCap":158663164},{"date":"2024-03-28","current":9.618894,"twenty":6.354173,"median":12.482478,"eighty":15.634658,"marketCap":160423914},{"date":"2024-04-05","current":9.413613,"twenty":6.352414,"median":12.450469,"eighty":15.589304,"marketCap":157000233},{"date":"2024-04-12","current":9.184871,"twenty":6.352414,"median":12.379133,"eighty":15.555794,"marketCap":153185274},{"date":"2024-04-19","current":9.208331,"twenty":6.352414,"median":12.362994,"eighty":15.511772,"marketCap":153576552},{"date":"2024-04-26","current":9.051069,"twenty":6.354173,"median":12.330422,"eighty":15.510314,"marketCap":159054441},{"date":"2024-05-03","current":9.073335,"twenty":6.354173,"median":12.292991,"eighty":15.510314,"marketCap":159445719},{"date":"2024-05-10","current":9.101168,"twenty":6.354173,"median":12.233499,"eighty":15.490681,"marketCap":159934817},{"date":"2024-05-17","current":8.995405,"twenty":6.354173,"median":12.196964,"eighty":15.477592,"marketCap":158076247},{"date":"2024-05-24","current":8.856243,"twenty":6.354173,"median":12.170577,"eighty":15.457958,"marketCap":155630760},{"date":"2024-05-31","current":8.865462,"twenty":6.354173,"median":12.113421,"eighty":15.43048,"marketCap":155792772},{"date":"2024-06-07","current":8.580202,"twenty":6.354173,"median":12.073832,"eighty":15.412147,"marketCap":150779881},{"date":"2024-06-14","current":8.390028,"twenty":6.354173,"median":11.957777,"eighty":15.383802,"marketCap":147437955},{"date":"2024-06-21","current":8.183074,"twenty":6.352414,"median":11.892811,"eighty":15.389137,"marketCap":143801152},{"date":"2024-06-28","current":8.613762,"twenty":6.352414,"median":11.868246,"eighty":15.389137,"marketCap":151369633},{"date":"2024-07-05","current":8.378841,"twenty":6.352414,"median":11.824711,"eighty":15.279248,"marketCap":147241371},{"date":"2024-07-12","current":9.21225,"twenty":6.352414,"median":11.786434,"eighty":15.098398,"marketCap":161886874},{"date":"2024-07-19","current":9.777179,"twenty":6.352414,"median":11.767168,"eighty":14.993038,"marketCap":171814363},{"date":"2024-07-26","current":12.237972,"twenty":6.352414,"median":11.757221,"eighty":14.860761,"marketCap":184585333},{"date":"2024-08-02","current":11.026001,"twenty":6.352414,"median":11.755752,"eighty":14.860761,"marketCap":166305174},{"date":"2024-08-09","current":10.569843,"twenty":6.352414,"median":11.736351,"eighty":14.860761,"marketCap":159424936},{"date":"2024-08-16","current":11.052067,"twenty":6.352414,"median":11.710363,"eighty":14.860761,"marketCap":166698330},{"date":"2024-08-23","current":11.938318,"twenty":6.352414,"median":11.690594,"eighty":14.860761,"marketCap":180065649},{"date":"2024-08-30","current":12.133814,"twenty":6.352414,"median":11.690594,"eighty":14.860761,"marketCap":183014322},{"date":"2024-09-06","current":11.619007,"twenty":6.352414,"median":11.689572,"eighty":14.860761,"marketCap":175249483},{"date":"2024-09-13","current":11.951351,"twenty":6.352414,"median":11.684374,"eighty":14.860761,"marketCap":180262227},{"date":"2024-09-20","current":12.772436,"twenty":6.352414,"median":11.684374,"eighty":14.860761,"marketCap":192646655},{"date":"2024-09-27","current":12.661655,"twenty":6.352414,"median":11.684374,"eighty":14.860761,"marketCap":190975740},{"date":"2024-10-04","current":12.322794,"twenty":6.352414,"median":11.684374,"eighty":14.860761,"marketCap":185864707},{"date":"2024-10-11","current":12.844118,"twenty":6.352414,"median":11.684374,"eighty":14.860761,"marketCap":193727835},{"date":"2024-10-18","current":13.306793,"twenty":6.352414,"median":11.684374,"eighty":14.860761,"marketCap":200706362},{"date":"2024-10-25","current":11.393217,"twenty":6.352414,"median":11.657666,"eighty":14.860761,"marketCap":201466251},{"date":"2024-11-01","current":11.565504,"twenty":6.352414,"median":11.649243,"eighty":14.860761,"marketCap":204512813},{"date":"2024-11-08","current":12.872592,"twenty":6.352414,"median":11.642793,"eighty":14.860761,"marketCap":227626045},{"date":"2024-11-15","current":13.111591,"twenty":6.352414,"median":11.642793,"eighty":14.860761,"marketCap":231852262},{"date":"2024-11-22","current":13.239428,"twenty":6.352414,"median":11.642793,"eighty":14.860761,"marketCap":234112797},{"date":"2024-11-29","current":13.239428,"twenty":6.352414,"median":11.642793,"eighty":14.860761,"marketCap":234112797},{"date":"2024-12-06","current":13.133823,"twenty":6.352414,"median":11.642793,"eighty":14.860761,"marketCap":232245399},{"date":"2024-12-13","current":12.811453,"twenty":6.352414,"median":11.642793,"eighty":14.857756,"marketCap":226544919},{"date":"2024-12-20","current":12.427943,"twenty":6.352414,"median":11.642793,"eighty":14.813932,"marketCap":219763314},{"date":"2024-12-27","current":12.216735,"twenty":6.352414,"median":11.642793,"eighty":14.813932,"marketCap":216028517},{"date":"2025-01-03","current":11.799876,"twenty":6.352414,"median":11.642793,"eighty":14.813932,"marketCap":208657207},{"date":"2025-01-10","current":10.382557,"twenty":6.350656,"median":11.632397,"eighty":14.817283,"marketCap":183594754},{"date":"2025-01-17","current":11.182925,"twenty":6.350656,"median":11.616504,"eighty":14.817283,"marketCap":197747669},{"date":"2025-01-24","current":9.448904,"twenty":6.350656,"median":11.602412,"eighty":14.817283,"marketCap":191359201},{"date":"2025-01-31","current":9.254782,"twenty":6.350656,"median":11.573681,"eighty":14.715637,"marketCap":187427835},{"date":"2025-02-07","current":9.439198,"twenty":6.350656,"median":11.55152,"eighty":14.599626,"marketCap":191162632},{"date":"2025-02-14","current":9.424639,"twenty":6.350656,"median":11.521854,"eighty":14.488903,"marketCap":190867780},{"date":"2025-02-21","current":9.004849,"twenty":6.350656,"median":11.499668,"eighty":14.329578,"marketCap":182366203},{"date":"2025-02-28","current":9.089778,"twenty":6.350656,"median":11.477966,"eighty":14.235917,"marketCap":184086175},{"date":"2025-03-07","current":8.507411,"twenty":6.348897,"median":11.45551,"eighty":14.212461,"marketCap":172292079},{"date":"2025-03-14","current":8.32064,"twenty":6.348897,"median":11.449277,"eighty":14.212461,"marketCap":168509605},{"date":"2025-03-21","current":8.602038,"twenty":6.348897,"median":11.449277,"eighty":14.212461,"marketCap":174208473},{"date":"2025-03-28","current":8.660258,"twenty":6.362379,"median":11.449277,"eighty":14.212461,"marketCap":175387549},{"date":"2025-04-04","current":8.053798,"twenty":6.362379,"median":11.449277,"eighty":14.212461,"marketCap":163105507},{"date":"2025-04-11","current":7.584174,"twenty":6.366483,"median":11.448664,"eighty":14.210786,"marketCap":153594700},{"date":"2025-04-17","current":7.86058,"twenty":6.366483,"median":11.448664,"eighty":14.210786,"marketCap":159192460},{"date":"2025-04-25","current":8.203278,"twenty":6.362379,"median":11.449277,"eighty":14.212461,"marketCap":179143175},{"date":"2025-05-02","current":8.70249,"twenty":6.362379,"median":11.44805,"eighty":14.212461,"marketCap":190044980},{"date":"2025-05-09","current":8.835929,"twenty":6.362379,"median":11.44805,"eighty":14.212461,"marketCap":192959020},{"date":"2025-05-16","current":8.732242,"twenty":6.362379,"median":11.44805,"eighty":14.212461,"marketCap":190694705},{"date":"2025-05-23","current":8.394133,"twenty":6.362379,"median":11.44805,"eighty":14.212461,"marketCap":183311069},{"date":"2025-05-30","current":8.535379,"twenty":6.362379,"median":11.44805,"eighty":14.212461,"marketCap":186395614},{"date":"2025-06-06","current":8.386977,"twenty":6.362379,"median":11.445281,"eighty":14.212461,"marketCap":183154805},{"date":"2025-06-13","current":8.655604,"twenty":6.362379,"median":11.421818,"eighty":14.212461,"marketCap":189021081},{"date":"2025-06-20","current":8.23184,"twenty":6.358276,"median":11.398447,"eighty":14.214137,"marketCap":179766924},{"date":"2025-06-27","current":8.628555,"twenty":6.358276,"median":11.395329,"eighty":14.214137,"marketCap":188430390},{"date":"2025-07-03","current":10.111729,"twenty":6.358276,"median":11.367316,"eighty":14.214137,"marketCap":220819940},{"date":"2025-07-11","current":9.994518,"twenty":6.358276,"median":11.365085,"eighty":14.214137,"marketCap":218260280},{"date":"2025-07-18","current":9.962961,"twenty":6.358276,"median":11.360879,"eighty":14.214137,"marketCap":217571140},{"date":"2025-07-25","current":9.649898,"twenty":6.358276,"median":11.348517,"eighty":14.214137,"marketCap":214951479},{"date":"2025-08-01","current":9.585845,"twenty":6.358276,"median":11.336176,"eighty":14.214137,"marketCap":213524701},{"date":"2025-08-08","current":9.41964,"twenty":6.358276,"median":11.291428,"eighty":14.214137,"marketCap":209822483},{"date":"2025-08-15","current":9.935845,"twenty":6.358276,"median":11.26004,"eighty":14.214137,"marketCap":221320952},{"date":"2025-08-22","current":9.860841,"twenty":6.358276,"median":11.211386,"eighty":14.214137,"marketCap":219650234},{"date":"2025-08-29","current":10.416754,"twenty":6.358276,"median":11.192719,"eighty":14.214137,"marketCap":232033201},{"date":"2025-09-05","current":10.315278,"twenty":6.354173,"median":11.174079,"eighty":14.215812,"marketCap":229772818},{"date":"2025-09-12","current":10.134386,"twenty":6.358276,"median":11.102332,"eighty":14.214137,"marketCap":225743440},{"date":"2025-09-19","current":10.381458,"twenty":6.358276,"median":11.025083,"eighty":14.214137,"marketCap":231246981},{"date":"2025-09-26","current":10.279982,"twenty":6.358276,"median":11.025083,"eighty":14.214137,"marketCap":228986598},{"date":"2025-10-03","current":10.015261,"twenty":6.358276,"median":11.025083,"eighty":14.214137,"marketCap":223089947},{"date":"2025-10-10","current":10.077029,"twenty":6.358276,"median":10.941796,"eighty":14.214137,"marketCap":224465832},{"date":"2025-10-17","current":9.503468,"twenty":6.358276,"median":10.648041,"eighty":14.214137,"marketCap":211689756},{"date":"2025-10-24","current":9.943846,"twenty":6.358276,"median":10.543776,"eighty":14.214137,"marketCap":229434368},{"date":"2025-10-31","current":10.276018,"twenty":6.358276,"median":10.472163,"eighty":14.214137,"marketCap":237098556},{"date":"2025-11-07","current":10.021755,"twenty":6.358276,"median":10.399655,"eighty":14.214137,"marketCap":231231952},{"date":"2025-11-14","current":10.153564,"twenty":6.358276,"median":10.326308,"eighty":14.214137,"marketCap":234273187},{"date":"2025-11-21","current":9.996243,"twenty":6.358276,"median":10.283473,"eighty":14.214137,"marketCap":230643326},{"date":"2025-11-28","current":10.54474,"twenty":6.358276,"median":10.278,"eighty":14.156177,"marketCap":243298788},{"date":"2025-12-05","current":11.110244,"twenty":6.358276,"median":10.278,"eighty":14.118005,"marketCap":256346666},{"date":"2025-12-12","current":11.539687,"twenty":6.358276,"median":10.278,"eighty":14.111936,"marketCap":266255205},{"date":"2025-12-19","current":11.769291,"twenty":6.358276,"median":10.278,"eighty":14.065025,"marketCap":271552840},{"date":"2025-12-26","current":11.607718,"twenty":6.358276,"median":10.278,"eighty":13.987511,"marketCap":267824875},{"date":"2026-01-02","current":11.361107,"twenty":6.358276,"median":10.278,"eighty":13.943217,"marketCap":262134823},{"date":"2026-01-09","current":16.216079,"twenty":6.358276,"median":10.278,"eighty":13.943217,"marketCap":374153601},{"date":"2026-01-16","current":16.478591,"twenty":6.358276,"median":10.278,"eighty":13.943217,"marketCap":380210539},{"date":"2026-01-23","current":16.978824,"twenty":6.358276,"median":10.278,"eighty":13.943217,"marketCap":388882974},{"date":"2026-01-30","current":16.940635,"twenty":6.358276,"median":10.278,"eighty":14.008771,"marketCap":388008295},{"date":"2026-02-06","current":17.811387,"twenty":6.358276,"median":10.278,"eighty":14.618226,"marketCap":407952004},{"date":"2026-02-13","current":17.691283,"twenty":6.358276,"median":10.278,"eighty":15.357735,"marketCap":405201147},{"date":"2026-02-20","current":17.679273,"twenty":6.358276,"median":10.278,"eighty":15.524131,"marketCap":404926062},{"date":"2026-02-27","current":17.505122,"twenty":6.358276,"median":10.278,"eighty":15.59571,"marketCap":400937320},{"date":"2026-03-06","current":16.736458,"twenty":6.358276,"median":10.278,"eighty":15.729902,"marketCap":383331839},{"date":"2026-03-13","current":16.117924,"twenty":6.358276,"median":10.278,"eighty":15.729902,"marketCap":369164928},{"date":"2026-03-20","current":16.142952,"twenty":6.358276,"median":10.278,"eighty":15.729902,"marketCap":369738172},{"date":"2026-03-27","current":16.214992,"twenty":6.358276,"median":10.278,"eighty":15.748689,"marketCap":371388175}],"updateTime":1774929603828},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"ISTR\",pageSize:20,pageCount:4,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"15920532","market":"us","labels":[],"media":"sec.gov","original_id":"AN156761923001936-ISTR","pdf_url":"","pub_time":1675612800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","symbol":"ISTR","title":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000156761923001936/0001567619-23-001936-index.htm","us_notice_code":"Form SC 13G/A","us_title_en":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"NONE","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1029311/000156761923001936/doc1.htm","primary":true,"translateUrl":"","linkName":"doc1.htm","type":"SC 13G/A","id":"NTFILECVyUpSpmUAJXv7Qe","market":"us","size":96411}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2023-02-06 00:00","pubTimestamp":1675612800,"title_zh":"SC 13G/A [Amend]  - Statement of acquisition of beneficial ownership by individuals","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15883184","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774923001872-ISTR","pdf_url":"","pub_time":1674662400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774923001872/0001437749-23-001872-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774923001872/ex_450214.htm","primary":true,"translateUrl":"","linkName":"ex_450214.htm","type":"EX-99.1","id":"NTFILEGibmQAGn28XMK7A4","market":"us","size":1196477},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774923001872/istr20221123_8k.htm","primary":false,"translateUrl":"","linkName":"istr20221123_8k.htm","type":"8-K","id":"NTFILECbXPKrxQQX5Cj4KD","market":"us","size":27324}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2023-01-26 00:00","pubTimestamp":1674662400,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15883185","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774923001583-ISTR","pdf_url":"","pub_time":1674403200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774923001583/0001437749-23-001583-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774923001583/istr20230103_8k.htm","primary":true,"translateUrl":"","linkName":"istr20230103_8k.htm","type":"8-K","id":"NTFILEH91cvFjN89knAUmF","market":"us","size":24700}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2023-01-23 00:00","pubTimestamp":1674403200,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15825904","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774923000418-ISTR","pdf_url":"","pub_time":1672848000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774923000418/0001437749-23-000418-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774923000418/istr20221205_8k.htm","primary":true,"translateUrl":"","linkName":"istr20221205_8k.htm","type":"8-K","id":"NTFILEAvNDvkXdM4Kicp6M","market":"us","size":23772}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2023-01-05 00:00","pubTimestamp":1672848000,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15668538","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922027661-ISTR","pdf_url":"","pub_time":1668614400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922027661/0001437749-22-027661-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 3.01: Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing;\nItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922027661/istr20221114_8k.htm","primary":true,"translateUrl":"","linkName":"istr20221114_8k.htm","type":"8-K","id":"NTFILE23ZDzW8qa1fn15NY","market":"us","size":26407}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-11-17 00:00","pubTimestamp":1668614400,"title_zh":"8-K  - Current report","summary_en":"Item 3.01: Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing;\nItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15618919","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922026071-ISTR","pdf_url":"","pub_time":1667491200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922026071/0001437749-22-026071-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922026071/istr20221028_8k.htm","primary":true,"translateUrl":"","linkName":"istr20221028_8k.htm","type":"8-K","id":"NTFILE24u39Tpd9ZTASutA","market":"us","size":27227}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-11-04 00:00","pubTimestamp":1667491200,"title_zh":"8-K  - Current report","summary_en":"Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15618921","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922025536-ISTR","pdf_url":"","pub_time":1667318400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"ISTR","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025536/0001437749-22-025536-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025536/istr20220930_10q.htm","primary":true,"translateUrl":"","linkName":"istr20220930_10q.htm","type":"10-Q","id":"NTFILEFQgK8a55fxBXKwC5","market":"us","size":3514516},{"description":"EXHIBIT 31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025536/ex_412379.htm","primary":false,"translateUrl":"","linkName":"ex_412379.htm","type":"EX-31.1","id":"NTFILE5iNENsji1SpEBiZJ","market":"us","size":9582},{"description":"EXHIBIT 31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025536/ex_412380.htm","primary":false,"translateUrl":"","linkName":"ex_412380.htm","type":"EX-31.2","id":"NTFILE4mEzLJqyoy5PtfVR","market":"us","size":9495},{"description":"EXHIBIT 32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025536/ex_412381.htm","primary":false,"translateUrl":"","linkName":"ex_412381.htm","type":"EX-32.1","id":"NTFILE8kKGyaqdKGx1CPxM","market":"us","size":4952},{"description":"EXHIBIT 32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025536/ex_412382.htm","primary":false,"translateUrl":"","linkName":"ex_412382.htm","type":"EX-32.2","id":"NTFILEyG7fadimDppLpBju","market":"us","size":4898}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2022-11-02 00:00","pubTimestamp":1667318400,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15618922","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922025401-ISTR","pdf_url":"","pub_time":1667232000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/0001437749-22-025401-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/ex_440335.htm","primary":true,"translateUrl":"","linkName":"ex_440335.htm","type":"EX-99.1","id":"NTFILEG6waGqgVYBU6KPC8","market":"us","size":14297},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/istr20221101_8k.htm","primary":false,"translateUrl":"","linkName":"istr20221101_8k.htm","type":"8-K","id":"NTFILE7XXXGWb3gLddez6q","market":"us","size":34394},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a01.jpg","primary":false,"translateUrl":"","linkName":"a01.jpg","type":"GRAPHIC","id":"NTFILECswdyTt4JPtiDtVb","market":"us","size":31034},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a02.jpg","primary":false,"translateUrl":"","linkName":"a02.jpg","type":"GRAPHIC","id":"NTFILExEsNBAo9MUGH77Fj","market":"us","size":162530},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a03.jpg","primary":false,"translateUrl":"","linkName":"a03.jpg","type":"GRAPHIC","id":"NTFILEcsLvbg4p2Y6KVg3d","market":"us","size":80002},{"description":"","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a04.jpg","primary":false,"translateUrl":"","linkName":"a04.jpg","type":"GRAPHIC","id":"NTFILE27gHjxNP8jZPA3gK","market":"us","size":67607},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a05.jpg","primary":false,"translateUrl":"","linkName":"a05.jpg","type":"GRAPHIC","id":"NTFILEGtrxvQURs98B2TDh","market":"us","size":103035},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a06.jpg","primary":false,"translateUrl":"","linkName":"a06.jpg","type":"GRAPHIC","id":"NTFILE3o7xFfhvtYXCub51","market":"us","size":105509},{"description":"","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a07.jpg","primary":false,"translateUrl":"","linkName":"a07.jpg","type":"GRAPHIC","id":"NTFILEAeNpoALiRyEcgcN6","market":"us","size":44800},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a08.jpg","primary":false,"translateUrl":"","linkName":"a08.jpg","type":"GRAPHIC","id":"NTFILE3K59uCNBLgrYT5L2","market":"us","size":58922},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a09.jpg","primary":false,"translateUrl":"","linkName":"a09.jpg","type":"GRAPHIC","id":"NTFILEAKQiHHT9gNN4ns4D","market":"us","size":54674},{"description":"","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a10.jpg","primary":false,"translateUrl":"","linkName":"a10.jpg","type":"GRAPHIC","id":"NTFILEzoF4mGMo1BW782s7","market":"us","size":59551},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a11.jpg","primary":false,"translateUrl":"","linkName":"a11.jpg","type":"GRAPHIC","id":"NTFILE4Fbcn9sw9662svZn","market":"us","size":56085},{"description":"","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a12.jpg","primary":false,"translateUrl":"","linkName":"a12.jpg","type":"GRAPHIC","id":"NTFILEFkwhSNuSKCLUH3KB","market":"us","size":86481},{"description":"","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a13.jpg","primary":false,"translateUrl":"","linkName":"a13.jpg","type":"GRAPHIC","id":"NTFILEAwxi4JRHHbM3gVer","market":"us","size":54785},{"description":"","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a14.jpg","primary":false,"translateUrl":"","linkName":"a14.jpg","type":"GRAPHIC","id":"NTFILEAqfdj5nXTrpADRJr","market":"us","size":54587},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a15.jpg","primary":false,"translateUrl":"","linkName":"a15.jpg","type":"GRAPHIC","id":"NTFILEDEjHy2fRkJVq85k2","market":"us","size":84991},{"description":"","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a16.jpg","primary":false,"translateUrl":"","linkName":"a16.jpg","type":"GRAPHIC","id":"NTFILE3j68d19BUfdzTFyh","market":"us","size":88457},{"description":"","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a17.jpg","primary":false,"translateUrl":"","linkName":"a17.jpg","type":"GRAPHIC","id":"NTFILE2WArsAZKNcxxQEon","market":"us","size":17560},{"description":"","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a18.jpg","primary":false,"translateUrl":"","linkName":"a18.jpg","type":"GRAPHIC","id":"NTFILE7TUZv9HYhbb8Gajw","market":"us","size":91683},{"description":"","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a19.jpg","primary":false,"translateUrl":"","linkName":"a19.jpg","type":"GRAPHIC","id":"NTFILEC9rJcCqiEKNEBfAS","market":"us","size":47695},{"description":"","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a20.jpg","primary":false,"translateUrl":"","linkName":"a20.jpg","type":"GRAPHIC","id":"NTFILE4gtaX12mv8ojeG6s","market":"us","size":51154},{"description":"","seq":27,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a21.jpg","primary":false,"translateUrl":"","linkName":"a21.jpg","type":"GRAPHIC","id":"NTFILEEzFmQc8Uxyw6TgUW","market":"us","size":82725},{"description":"","seq":28,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a22.jpg","primary":false,"translateUrl":"","linkName":"a22.jpg","type":"GRAPHIC","id":"NTFILE3vpKofcTnX8H7LKN","market":"us","size":74870},{"description":"","seq":29,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922025401/a23.jpg","primary":false,"translateUrl":"","linkName":"a23.jpg","type":"GRAPHIC","id":"NTFILEBRNCrf3qnscjB3RF","market":"us","size":19025}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-11-01 00:00","pubTimestamp":1667232000,"title_zh":"8-K  - Current report","summary_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15591181","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922024589-ISTR","pdf_url":"","pub_time":1666540800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922024589/0001437749-22-024589-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922024589/ex_412384.htm","primary":true,"translateUrl":"","linkName":"ex_412384.htm","type":"EX-99.1","id":"NTFILEB9YyqNG6F7QUMaY1","market":"us","size":1025733},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922024589/istr20220814_8k.htm","primary":false,"translateUrl":"","linkName":"istr20220814_8k.htm","type":"8-K","id":"NTFILE6kzamAebC6o7L1yV","market":"us","size":27407}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-10-24 00:00","pubTimestamp":1666540800,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15469729","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922022902-ISTR","pdf_url":"","pub_time":1663776000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022902/0001437749-22-022902-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022902/ex_418875.htm","primary":true,"translateUrl":"","linkName":"ex_418875.htm","type":"EX-99.1","id":"NTFILEGczb65BBHbDrzSmq","market":"us","size":8287},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022902/istr20220831_8k.htm","primary":false,"translateUrl":"","linkName":"istr20220831_8k.htm","type":"8-K","id":"NTFILE6tYfYzqgiswoD79B","market":"us","size":24305},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022902/ex_418875img001.jpg","primary":false,"translateUrl":"","linkName":"ex_418875img001.jpg","type":"GRAPHIC","id":"NTFILE36684Vbt3YcPvFec","market":"us","size":6379}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-09-22 00:00","pubTimestamp":1663776000,"title_zh":"8-K  - Current report","summary_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15469730","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922022656-ISTR","pdf_url":"","pub_time":1663516800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/0001437749-22-022656-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/ex_424081.htm","primary":true,"translateUrl":"","linkName":"ex_424081.htm","type":"EX-99.1","id":"NTFILE4jCTD12sxvV2hJ3u","market":"us","size":14396},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/istr20220824_8k.htm","primary":false,"translateUrl":"","linkName":"istr20220824_8k.htm","type":"8-K","id":"NTFILE7zQ8M4imbRNjeuic","market":"us","size":34305},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide01.jpg","primary":false,"translateUrl":"","linkName":"slide01.jpg","type":"GRAPHIC","id":"NTFILE46TbqE8kyne2sWy2","market":"us","size":34784},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide02.jpg","primary":false,"translateUrl":"","linkName":"slide02.jpg","type":"GRAPHIC","id":"NTFILE2NoQMfTE2A7ub9Xy","market":"us","size":182719},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide03.jpg","primary":false,"translateUrl":"","linkName":"slide03.jpg","type":"GRAPHIC","id":"NTFILE8SjAfYvY9aynLmnQ","market":"us","size":70710},{"description":"","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide04.jpg","primary":false,"translateUrl":"","linkName":"slide04.jpg","type":"GRAPHIC","id":"NTFILEBuP8UYHo5WHxt6kM","market":"us","size":82483},{"description":"","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide05.jpg","primary":false,"translateUrl":"","linkName":"slide05.jpg","type":"GRAPHIC","id":"NTFILE3sA9u39F16mxuK9A","market":"us","size":124795},{"description":"","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide06.jpg","primary":false,"translateUrl":"","linkName":"slide06.jpg","type":"GRAPHIC","id":"NTFILEA6v4VCbUXj1hMuPb","market":"us","size":133452},{"description":"","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide07.jpg","primary":false,"translateUrl":"","linkName":"slide07.jpg","type":"GRAPHIC","id":"NTFILE4sKKMysNTUbEyUCu","market":"us","size":55528},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide08.jpg","primary":false,"translateUrl":"","linkName":"slide08.jpg","type":"GRAPHIC","id":"NTFILEEkr4MFUnjcTGditD","market":"us","size":77081},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide09.jpg","primary":false,"translateUrl":"","linkName":"slide09.jpg","type":"GRAPHIC","id":"NTFILE8ZCQbnHkumgWzfQP","market":"us","size":66799},{"description":"","seq":16,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide10.jpg","primary":false,"translateUrl":"","linkName":"slide10.jpg","type":"GRAPHIC","id":"NTFILEFzFSfBjk6STswSpd","market":"us","size":71165},{"description":"","seq":17,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide11.jpg","primary":false,"translateUrl":"","linkName":"slide11.jpg","type":"GRAPHIC","id":"NTFILEA72ce2KU3YtGiFYF","market":"us","size":70365},{"description":"","seq":18,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide12.jpg","primary":false,"translateUrl":"","linkName":"slide12.jpg","type":"GRAPHIC","id":"NTFILECQCcEUoyqgCkoPNz","market":"us","size":105294},{"description":"","seq":19,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide13.jpg","primary":false,"translateUrl":"","linkName":"slide13.jpg","type":"GRAPHIC","id":"NTFILE7odwAvP7v2ZMLYi6","market":"us","size":68424},{"description":"","seq":20,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide14.jpg","primary":false,"translateUrl":"","linkName":"slide14.jpg","type":"GRAPHIC","id":"NTFILEE7AbrH3RqGszvPeD","market":"us","size":67088},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide15.jpg","primary":false,"translateUrl":"","linkName":"slide15.jpg","type":"GRAPHIC","id":"NTFILEB3K6kYc1LKKNQRME","market":"us","size":105393},{"description":"","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide16.jpg","primary":false,"translateUrl":"","linkName":"slide16.jpg","type":"GRAPHIC","id":"NTFILE4Ru1eFDy9a1ryo1a","market":"us","size":106436},{"description":"","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide17.jpg","primary":false,"translateUrl":"","linkName":"slide17.jpg","type":"GRAPHIC","id":"NTFILEGjzkbU2eYkmGUQkg","market":"us","size":20754},{"description":"","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide18.jpg","primary":false,"translateUrl":"","linkName":"slide18.jpg","type":"GRAPHIC","id":"NTFILE9HrPBt8ew8CsPbB2","market":"us","size":113728},{"description":"","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide19.jpg","primary":false,"translateUrl":"","linkName":"slide19.jpg","type":"GRAPHIC","id":"NTFILECeAaNBwS4Z6grytj","market":"us","size":59931},{"description":"","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide20.jpg","primary":false,"translateUrl":"","linkName":"slide20.jpg","type":"GRAPHIC","id":"NTFILEDvDq9HNA1V24URd7","market":"us","size":64254},{"description":"","seq":27,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide21.jpg","primary":false,"translateUrl":"","linkName":"slide21.jpg","type":"GRAPHIC","id":"NTFILESEhQpNfzoSsLadBu","market":"us","size":100457},{"description":"","seq":28,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide22.jpg","primary":false,"translateUrl":"","linkName":"slide22.jpg","type":"GRAPHIC","id":"NTFILEF14XvoRZC32wdiE6","market":"us","size":85397},{"description":"","seq":29,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922022656/slide23.jpg","primary":false,"translateUrl":"","linkName":"slide23.jpg","type":"GRAPHIC","id":"NTFILEDxu8qS7FTpMAz3jb","market":"us","size":22327}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-09-19 00:00","pubTimestamp":1663516800,"title_zh":"8-K  - Current report","summary_en":"Item 7.01: Regulation FD Disclosure;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15268115","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922019142-ISTR","pdf_url":"","pub_time":1659628800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"ISTR","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922019142/0001437749-22-019142-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922019142/istr20220630_10q.htm","primary":true,"translateUrl":"","linkName":"istr20220630_10q.htm","type":"10-Q","id":"NTFILEGyvkpWXmwwoGMduy","market":"us","size":3484500},{"description":"EXHIBIT 31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922019142/ex_380385.htm","primary":false,"translateUrl":"","linkName":"ex_380385.htm","type":"EX-31.1","id":"NTFILEFaXtZEhEaNXf74f6","market":"us","size":9575},{"description":"EXHIBIT 31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922019142/ex_380386.htm","primary":false,"translateUrl":"","linkName":"ex_380386.htm","type":"EX-31.2","id":"NTFILE3rpXtnWVeT2tiC2C","market":"us","size":9488},{"description":"EXHIBIT 32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922019142/ex_380387.htm","primary":false,"translateUrl":"","linkName":"ex_380387.htm","type":"EX-32.1","id":"NTFILE6prs6MyJxXRJaEyM","market":"us","size":4945},{"description":"EXHIBIT 32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922019142/ex_380388.htm","primary":false,"translateUrl":"","linkName":"ex_380388.htm","type":"EX-32.2","id":"NTFILE7bV7svKzmqqfizCA","market":"us","size":4891}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2022-08-05 00:00","pubTimestamp":1659628800,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15237563","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922017828-ISTR","pdf_url":"","pub_time":1658851200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922017828/0001437749-22-017828-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922017828/ex_380390.htm","primary":true,"translateUrl":"","linkName":"ex_380390.htm","type":"EX-99.1","id":"NTFILE5mSmN1Mfd9LyrAo6","market":"us","size":1001770},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922017828/istr20220526_8k.htm","primary":false,"translateUrl":"","linkName":"istr20220526_8k.htm","type":"8-K","id":"NTFILE2zRe6ne1Q4j998Ha","market":"us","size":28997}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-07-27 00:00","pubTimestamp":1658851200,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15206542","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922017283-ISTR","pdf_url":"","pub_time":1658160000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922017283/0001437749-22-017283-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922017283/ex_394938.htm","primary":true,"translateUrl":"","linkName":"ex_394938.htm","type":"EX-99.1","id":"NTFILEfaAhRnxC8ZskkFUQ","market":"us","size":9286},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922017283/istr20220713_8k.htm","primary":false,"translateUrl":"","linkName":"istr20220713_8k.htm","type":"8-K","id":"NTFILE5TXxn8Wp4VrZuNPB","market":"us","size":27651},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922017283/img01.jpg","primary":false,"translateUrl":"","linkName":"img01.jpg","type":"GRAPHIC","id":"NTFILEDbjaGfS6DUymxeiD","market":"us","size":6768}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-07-19 00:00","pubTimestamp":1658160000,"title_zh":"8-K  - Current report","summary_en":"Item 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15074756","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922015903-ISTR","pdf_url":"","pub_time":1656000000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"11-K  - Annual report of employee stock purchase, savings and similar plans","symbol":"ISTR","title":"11-K  - Annual report of employee stock purchase, savings and similar plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922015903/0001437749-22-015903-index.htm","us_notice_code":"Form 11-K","us_title_en":"11-K  - Annual report of employee stock purchase, savings and similar plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 11-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922015903/istr20211231_11k.htm","primary":true,"translateUrl":"","linkName":"istr20211231_11k.htm","type":"11-K","id":"NTFILE854PTDAhC1n7gX69","market":"us","size":214509},{"description":"EXHIBIT 23.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922015903/ex_371229.htm","primary":false,"translateUrl":"","linkName":"ex_371229.htm","type":"EX-23.1","id":"NTFILE4d8rFt9As6Fzp8b2","market":"us","size":2142}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2022-06-24 00:00","pubTimestamp":1656000000,"title_zh":"11-K  - Annual report of employee stock purchase, savings and similar plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15206543","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922015283-ISTR","pdf_url":"","pub_time":1655395200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"CORRESP [Cover] - Correspondence","symbol":"ISTR","title":"CORRESP [Cover] - Correspondence","titleType":"Correspondence","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922015283/0001437749-22-015283-index.htm","us_notice_code":"Form CORRESP","us_title_en":"CORRESP [Cover] - Correspondence","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922015283/filename1.htm","primary":true,"translateUrl":"","linkName":"filename1.htm","type":"CORRESP","id":"NTFILEEbJ59RN6uauPKbYf","market":"us","size":5553},{"description":"","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922015283/investarlogo.jpg","primary":false,"translateUrl":"","linkName":"investarlogo.jpg","type":"GRAPHIC","id":"NTFILEAFLsxe2g1FQMxY8i","market":"us","size":14804}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Correspondence","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Correspondence","pubTime":"2022-06-17 00:00","pubTimestamp":1655395200,"title_zh":"CORRESP [Cover] - Correspondence","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"15007845","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922014598-ISTR","pdf_url":"","pub_time":1654617600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922014598/0001437749-22-014598-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922014598/istr20220607_8k.htm","primary":true,"translateUrl":"","linkName":"istr20220607_8k.htm","type":"8-K","id":"NTFILE41naK3yrTRf1LEeN","market":"us","size":22549}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-06-08 00:00","pubTimestamp":1654617600,"title_zh":"8-K  - Current report","summary_en":"Item 8.01: Other Events","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14887160","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922013047-ISTR","pdf_url":"","pub_time":1652889600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922013047/0001437749-22-013047-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922013047/istr20220404_8k.htm","primary":true,"translateUrl":"","linkName":"istr20220404_8k.htm","type":"8-K","id":"NTFILE5PPQ1XDfHMNdKqpZ","market":"us","size":33548}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-05-19 00:00","pubTimestamp":1652889600,"title_zh":"8-K  - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14795631","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922010847-ISTR","pdf_url":"","pub_time":1651593600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"10-Q  - Quarterly report [Sections 13 or 15(d)]","symbol":"ISTR","title":"10-Q  - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922010847/0001437749-22-010847-index.htm","us_notice_code":"Form 10-Q","us_title_en":"10-Q  - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922010847/istr20220331_10q.htm","primary":true,"translateUrl":"","linkName":"istr20220331_10q.htm","type":"10-Q","id":"NTFILEEPuMjcqZD6XKxbWm","market":"us","size":2851574},{"description":"EXHIBIT 10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922010847/ex_370539.htm","primary":false,"translateUrl":"","linkName":"ex_370539.htm","type":"EX-10.1","id":"NTFILEDrbVdhJRqF4G4u58","market":"us","size":31805},{"description":"EXHIBIT 31.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922010847/ex_348104.htm","primary":false,"translateUrl":"","linkName":"ex_348104.htm","type":"EX-31.1","id":"NTFILEFZaBg3BmvxCwPEsm","market":"us","size":9573},{"description":"EXHIBIT 31.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922010847/ex_348105.htm","primary":false,"translateUrl":"","linkName":"ex_348105.htm","type":"EX-31.2","id":"NTFILE6eDkr6E4tXN3vo6B","market":"us","size":9486},{"description":"EXHIBIT 32.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922010847/ex_348106.htm","primary":false,"translateUrl":"","linkName":"ex_348106.htm","type":"EX-32.1","id":"NTFILEGxmpyfe9yaMmVNig","market":"us","size":4943},{"description":"EXHIBIT 32.2","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922010847/ex_348107.htm","primary":false,"translateUrl":"","linkName":"ex_348107.htm","type":"EX-32.2","id":"NTFILE9U4Y9SgoVKPgrCSb","market":"us","size":4889}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2022-05-04 00:00","pubTimestamp":1651593600,"title_zh":"10-Q  - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"14658362","market":"us","labels":[],"media":"sec.gov","original_id":"AN143774922009486-ISTR","pdf_url":"","pub_time":1650556800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"8-K  - Current report","symbol":"ISTR","title":"8-K  - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922009486/0001437749-22-009486-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922009486/ex_348109.htm","primary":true,"translateUrl":"","linkName":"ex_348109.htm","type":"EX-99.1","id":"NTFILE7xhieQ8hpS5b2UWH","market":"us","size":1046980},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1602658/000143774922009486/istr20220316_8k.htm","primary":false,"translateUrl":"","linkName":"istr20220316_8k.htm","type":"8-K","id":"NTFILEE6nD4eqBHkPuic1n","market":"us","size":28376}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2022-04-22 00:00","pubTimestamp":1650556800,"title_zh":"8-K  - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":10,"pageCount":4,"totalSize":186,"code":"91000000","status":"200"}]}}