Perma-Pipe Inlt Hldgs (NASDAQ:PPIH) reported quarterly earnings of $0.31 per share. This is a 29.17 percent increase over earnings of $0.24 per share from the same period last year. The company reported $41.56 million in sales this quarter. This is a 9.03 percent decrease over sales of $45.69 million the same period last year.