ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)	12 Months Ended
	Aug. 02, 2025	Aug. 03, 2024	Jul. 29, 2023
Changes in Accumulated Other Comprehensive Income (Loss) By Component
Stockholders' equity, beginning balance	$ 187,022,000	$ 247,310,000	$ 322,651,000
Other comprehensive income (loss) before reclassifications	(104,000)	(2,007,000)
Amounts reclassified from AOCI	5,000	0
Release of cumulative foreign currency translation adjustments associated with discontinued operations	0	1,145,000
Total other comprehensive income (loss), net of tax	(99,000)	(862,000)	4,054,000
Stockholders' equity, ending balance	202,978,000	187,022,000	247,310,000
Losses on available-for-sale securities	0	0
Total
Changes in Accumulated Other Comprehensive Income (Loss) By Component
Stockholders' equity, beginning balance	(335,000)	527,000	(3,527,000)
Total other comprehensive income (loss), net of tax	(99,000)	(862,000)	4,054,000
Stockholders' equity, ending balance	(434,000)	(335,000)	527,000
Available-for-sale Securities
Changes in Accumulated Other Comprehensive Income (Loss) By Component
Stockholders' equity, beginning balance	(335,000)	(602,000)
Other comprehensive income (loss) before reclassifications	(104,000)	267,000
Amounts reclassified from AOCI	5,000	0
Release of cumulative foreign currency translation adjustments associated with discontinued operations	0	0
Total other comprehensive income (loss), net of tax	(99,000)	267,000
Stockholders' equity, ending balance	(434,000)	(335,000)	(602,000)
Foreign Currency Translation
Changes in Accumulated Other Comprehensive Income (Loss) By Component
Stockholders' equity, beginning balance	0	1,129,000
Other comprehensive income (loss) before reclassifications	0	(2,274,000)
Amounts reclassified from AOCI	0	0
Release of cumulative foreign currency translation adjustments associated with discontinued operations	0	1,145,000
Total other comprehensive income (loss), net of tax	0	(1,129,000)
Stockholders' equity, ending balance	$ 0	$ 0	$ 1,129,000