COMPREHENSIVE (LOSS) INCOME - Accumulated Other Comprehensive Income, Net of Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 77,357	$ (4,754)	$ 68,624	$ (9,206)
Foreign currency translation adjustment	(68)	(819)	(341)	999
Pension liability adjustments	0	0	0	(1,078)
Other comprehensive loss	(68)	(819)	(341)	(79)
Ending balance	148,580	(2,889)	148,580	(2,889)
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(860)	4,880	(587)	4,140
Ending balance	(928)	4,061	(928)	4,061
Foreign Currency Items
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			(623)	6,063
Foreign currency translation adjustment			(341)	999
Pension liability adjustments				0
Other comprehensive loss			(341)	999
Ending balance	(964)	7,062	(964)	7,062
Pension Items
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			36	(1,923)
Foreign currency translation adjustment			0	0
Pension liability adjustments				(1,078)
Other comprehensive loss			0	(1,078)
Ending balance	$ 36	$ (3,001)	$ 36	$ (3,001)