STATEMENT OF CASH FLOWS SUPPLEMENTAL INFORMATION - Cash Used for Operating Activities Reflect Cash Payments for Interest and Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2023	Jul. 31, 2022
Supplemental Cash Flow Elements [Abstract]
Cash paid for interest	$ 9	$ 1,145	$ 1,237
Cash paid for income taxes	$ 3,008	$ 0	$ 2,364