(Loss) Earnings Per Share (Tables)

6 Months Ended

Jan. 31, 2016

(Loss) Earnings Per Share [Abstract]

Summary of components of the earnings (loss) per common share calculation

	Three Months Ended January 31,				Six Months Ended January 31,
	2016		2015		2016		2015
	(in thousands)
Basic weighted-average number of shares		11,854		11,420		11,832		11,409
Effect of dilutive securities:
Shares underlying stock options		—		—		—		7
Non-vested restricted Class B common stock		—		—		—		421
Diluted weighted-average number of shares		11,854		11,420		11,832		11,837

Summary of shares excluded from the diluted earnings per share computations

	Three Months Ended January 31,				Six Months Ended January 31,
	2016		2015		2016		2015
	(in thousands)
Stock options		6		7		4		—
Non-vested restricted Class B common stock		35		409		173		—
Shares excluded from the calculation of diluted (loss) earnings per share		41		416		177		—