Earnings (Loss) Per Share (Tables)

9 Months Ended

Apr. 30, 2017

Earnings (Loss) Per Share [Abstract]

Summary of shares excluded from diluted earnings per share computations

	Three Months Ended April 30,				Nine Months Ended April 30,
	2017		2016		2017		2016
	(in thousands)
Stock options		45		3		22		4
Warrants		61		-		43		-
Non-vested restricted Class B common stock		265		179		225		175
Shares excluded from the calculation of diluted (loss) earnings per share		371		182		290		179