Note 8 - Significant Components of Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Deferred Tax Assets
Net operating loss	$ 14,307	$ 14,661
Capital loss carryover	31
Valuation adjustment on investment	695	$ 737
Depreciation	(64)	(137)
Inventory	180	261
Other	(12)	540
Valuation allowance	$ (15,137)	$ (16,062)
Total deferred tax asset
Less current portion
Net long-term deferred tax asset