Earnings (Loss) Per Share (Tables)

6 Months Ended

Jan. 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  January 31,				Six Months Ended  January 31,
	2015		2014		2015		2014
	(in thousands)
Basic weighted-average number of shares		11,420		10,784		11,409		10,646
Effect of dilutive securities:
Shares underlying stock options		—		—		7		—
Non-vested restricted Class B common stock		—		—		421		—
Diluted weighted-average number of shares		11,420		10,784		11,837		10,646

Summary of shares excluded from the diluted earnings per share computations

	Three Months Ended  January 31,				Six Months Ended  January 31,
	2015		2014		2015		2014
	(in thousands)
Stock options		7		30		—		30
Non-vested restricted Class B common stock		409		474		—		474
Shares excluded from the calculation of diluted earnings (loss) per share		416		504		—		504