CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 299	$ (7,648)
Other comprehensive gain (loss):
Foreign currency translation adjustments	171	(271)
Comprehensive income (loss)	$ 470	$ (7,919)