COMPREHENSIVE INCOME (LOSS) - Accumulated Other Comprehensive Income Items (Details) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ (9,206)	$ 6,212
Foreign currency translation adjustment	(2,837)	198
Pension liability adjustments	(1,078)	0
Other comprehensive income	(3,915)	198
Ending balance	(8,524)	(13,431)
Accumulated Other Comprehensive Income
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	4,140	7,162
Ending balance	225	7,360
Foreign Currency Items
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	6,063	9,762
Foreign currency translation adjustment	(2,837)	198
Pension liability adjustments	0
Other comprehensive income	(2,837)	198
Ending balance	3,226	9,960
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)
Other comprehensive income	(1,078)	0
Ending balance	$ (3,001)	$ (2,600)