REVENUE RECOGNITION - Performance Obligations (Detail) - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Change in Deferred Revenue
Balance at beginning of period	$ 2,320	$ 2,464
Deferral of revenue	2,049	1,959
Recognition of deferred amounts upon satisfaction of performance obligation	(1,140)	(1,924)
Balance at end of period	$ 3,229	$ 2,499