SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021	Aug. 31, 2021
Product Information [Line Items]
Revenue	$ 14,959	$ 12,777	$ 42,172	$ 36,625
Revenue, remaining performance obligation, amount	13,200		13,200
Contract asset balance	1,800		1,800		$ 3,200
Contract with customer, liability, revenue recognized	$ 68	30	$ 608	430
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-06-01
Product Information [Line Items]
Revenue, remaining performance obligation, percent	89.00%		89.00%
Revenue, remaining performance obligation, period	12 months		12 months
Software licenses: | Point in time
Product Information [Line Items]
Revenue	$ 9,380	8,098	$ 25,980	21,570
Software licenses: | Over time
Product Information [Line Items]
Revenue	267	200	787	703
Consulting services: | Over time
Product Information [Line Items]
Revenue	$ 5,312	$ 4,479	$ 15,405	$ 14,352