PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Cost	$ 149,934	$ 140,902
Accumulated Depreciation	(110,559)	(103,786)
Net	39,375	37,116
Land
Cost	1,014	1,009
Accumulated Depreciation	0	0
Net	1,014	1,009
Buildings and building improvements
Cost	32,587	29,424
Accumulated Depreciation	(18,786)	(17,242)
Net	13,801	12,182
Machinery and equipment
Cost	116,333	110,469
Accumulated Depreciation	(91,773)	(86,544)
Net	$ 24,560	$ 23,925