REVENUE RECOGNITION - Summary of Changes in Deferred Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Jul. 31, 2023	Apr. 30, 2023	Jul. 31, 2022
Change in Deferred Revenue
Balance at beginning of period	$ 3,073	$ 2,839	$ 2,320
Deferral of revenue	245	1,595	2,368
Recognition of deferred amounts upon satisfaction of performance obligation	(600)	(1,361)	(1,849)
Balance at end of period	$ 2,718	$ 3,073	$ 2,839