DEBT - Net Carrying Value of the Notes (Detail) - USD ($)	Jul. 31, 2022	Jul. 31, 2021	Feb. 28, 2019
Debt Instrument [Line Items]
Carrying amount of equity component	$ 8,200,000	$ 8,200,000
Total debt, net	10,968,000	9,147,000
SPHG Holdings | 7.50% Convertible Senior Note due March 1, 2024
Debt Instrument [Line Items]
Principal amount of note	14,940,000	14,940,000	$ 14,900,000
Unamortized debt discount	(3,893,000)	(5,597,000)
Total debt, net	$ 11,047,000	$ 9,343,000