Perma-Pipe Inlt Hldgs (NASDAQ:PPIH) reported quarterly earnings of $0.61 per share. This is a 238.89 percent increase over earnings of $0.18 per share from the same period last year. The company reported $46.75 million in sales this quarter. This is a 36.21 percent increase over sales of $34.32 million the same period last year.