Earnings (Loss) Per Share (Tables)

6 Months Ended

Jan. 31, 2021

Earnings Per Share [Abstract]

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

	Three Months Ended January 31,				Six Months Ended January 31,
	2021		2020		2021		2020
	(in thousands)
Basic weighted-average number of shares		25,362		26,320		25,448		26,300
Effect of dilutive securities:
Stock options		9		—		4		—
Non-vested restricted Class B common stock		342		131		335		—
Diluted weighted-average number of shares		25,713		26,451		25,787		26,300

Schedule of shares excluded from the diluted earnings (loss) per share

	Three Months Ended January 31,				Six Months Ended January 31,
	2021		2020		2021		2020
	(in thousands)
Stock options		1,035		1,190		1,070		1,190
Non-vested restricted Class B common stock		—		—		—		520
Shares excluded from the calculation of diluted earnings per share		1,035		1,190		1,070		1,710