REVENUE RECOGNITION - Contract Balance (Detail) - USD ($) $ in Thousands	Apr. 30, 2023	Jul. 31, 2022	Apr. 30, 2022	Jul. 31, 2021
Disaggregation of Revenue [Line Items]
Contract assets	$ 685	$ 369
Deferred revenue - current	2,949	2,705
Deferred revenue - long-term	124	134
Total deferred revenue	3,073	2,839	$ 3,229	$ 2,320
Accounts receivable, trade, net
Disaggregation of Revenue [Line Items]
Accounts receivable, trade, net	$ 36,948	$ 40,083