INCOME TAXES (Details 3) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Deferred tax assets:
Net operating losses and credits	$ 782	$ 487
Inventory valuation	144	121
Provision for bad debts	0	785
Accrued vacation	12	37
Accrued expenses	134	188
Fixed asset basis	3	1
Investment in subsidiaries	77	277
Unrealized gain	4	24
Other	12	51
Total deferred tax assets	1,168	1,971
Deferred tax liabilities:
Depreciation	(329)	(359)
Others	0	(76)
Total deferred income tax liabilities	(329)	(435)
Subtotal	839	1,536
Valuation allowance	(622)	(1,289)
Net deferred tax assets	217	247
Presented as follows in the balance sheets:
Deferred tax assets	217	247
Deferred tax liabilities	0	0
Net deferred tax assets / (liability)	$ 217	$ 247