COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Schedule of Equipment and improvements ) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Property, Plant and Equipment [Line Items]
Equipment and improvements, gross	$ 13,390	$ 13,177
Less: accumulated depreciation and amortization	(8,311)	(8,344)
Equipment and improvements, net	5,079	4,833
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Equipment and improvements, gross	1,957	2,224
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Equipment and improvements, gross	6,675	6,661
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Equipment and improvements, gross	21	21
Leaseholds and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Equipment and improvements, gross	$ 4,737	$ 4,271