COMPREHENSIVE (LOSS) INCOME - Accumulated Other Comprehensive Income, Net of Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 71,665	$ (8,524)	$ 68,624	$ (9,206)
Foreign currency translation adjustment	723	4,655	(273)	1,818
Pension liability adjustments	0	0	0	(1,078)
Other comprehensive income (loss)	723	4,655	(273)	740
Ending balance	77,357	(4,754)	77,357	(4,754)
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,583)	225	(587)	4,140
Pension liability adjustments				(1,078)
Ending balance	(860)	4,880	(860)	4,880
Foreign Currency Items
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			(623)	6,063
Foreign currency translation adjustment			(273)	1,818
Pension liability adjustments				0
Other comprehensive income (loss)			(273)	1,818
Ending balance	(896)	7,881	(896)	7,881
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 income (loss)			0	(1,078)
Ending balance	$ 36	$ (3,001)	$ 36	$ (3,001)