REVENUE RECOGNITION - Summary of Changes in Deferred Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
Change in Deferred Revenue
Balance at beginning of period	$ 2,839	$ 2,320
Deferral of revenue	271	508
Recognition of deferred amounts upon satisfaction of performance obligation	(641)	(309)
Balance at end of period	$ 2,469	$ 2,519