REVENUE RECOGNITION REVENUE RECOGNITION - Contract Balances (Details) - USD ($) $ in Thousands	Jul. 31, 2023	Apr. 30, 2023	Jul. 31, 2022	Aug. 01, 2021	Jul. 31, 2021
Disaggregation of Revenue [Line Items]
Contract assets	$ 439		$ 369	$ 627
Deferred revenue - current	2,574		2,705	2,212
Deferred revenue - long-term	144		134	108
Total deferred revenue	2,718	$ 3,073	2,839	2,320	$ 2,320
Trade Accounts Receivable
Disaggregation of Revenue [Line Items]
Accounts receivable, trade, net	$ 28,616		$ 40,083	$ 36,547