Earnings (Loss) Per Share (Tables)

3 Months Ended

Oct. 31, 2015

Earnings (Loss) Per Share [Abstract]

Schedule of weighted-average number of shares used in the calculation of basic and diluted earnings per share

	Three Months Ended October 31,
	2015		2014
	(in thousands)
Basic weighted-average number of shares		11,810		11,398
Effect of dilutive securities:
Shares underlying stock options		—		10
Non-vested restricted Class B common stock		—		395
Diluted weighted-average number of shares		11,810		11,803

Summary of shares excluded from the diluted earnings per share computations

	Three Months Ended October 31,
	2015		2014
	(in thousands)
Shares underlying stock options		2		—
Non-vested restricted Class B common stock		239		—
Shares excluded from the calculation of diluted loss per share		241		—