INCOME TAXES - Difference of Income Tax Expense Attributable to Income from Continuing Operations and Expense Computed using U.S. Federal Income Tax (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Income Tax Disclosure [Abstract]
Computed "expected" income tax expense (benefit)	$ 448	$ (630)
Increase (decrease) in income tax expense resulting from:
Change in valuation allowance	25,737	4,085
Foreign tax rate differential	56	(33)
Goodwill impairment	0	5,388
Nondeductible expenses	159	126
Foreign withholding taxes	134	(1,310)
Foreign other adjustments	951	347
GILTI	4,775	0
Addition of uncertain tax position reserves	58	(74)
Worthless stock deduction	(20,455)	0
State income taxes, net of federal benefit	(1,042)	317
Deferred true-up	751	0
Other	(184)	621
Total tax provision	$ 11,388	$ 8,837