COMPREHENSIVE INCOME (LOSS) - Accumulated Other Comprehensive Income Items (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ (4,754)	$ (36,740)	$ (9,206)	$ 6,212
Foreign currency translation adjustment	(819)	(2,461)	999	(2,276)
Pension liability adjustments			(1,078)
Net current-period other comprehensive income	(819)	(2,461)	(79)	(2,276)
Ending balance	(2,889)	(9,427)	(2,889)	(9,427)
Accumulated Other Comprehensive Income
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	4,880	7,347	4,140	7,162
Ending balance	4,061	4,886	4,061	4,886
Foreign Currency Items
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			6,063	9,762
Foreign currency translation adjustment			999	(2,276)
Pension liability adjustments			0
Net current-period other comprehensive income			999	(2,276)
Ending balance	7,062	7,486	7,062	7,486
Pension Items
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			(1,923)	(2,600)
Foreign currency translation adjustment			0	0
Pension liability adjustments			(1,078)
Net current-period other comprehensive income			(1,078)	0
Ending balance	$ (3,001)	$ (2,600)	$ (3,001)	$ (2,600)