Note 8 - Significant Components of Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Deferred Tax Assets
Net operating loss	$ 13,967	$ 14,307
Capital loss carryover	31	31
Valuation adjustment on investment	695	695
Depreciation	(166)	(64)
Inventory	156	180
Other	31	(12)
Valuation allowance	(14,714)	(15,137)
Total deferred tax asset
Less current portion
Net long-term deferred tax asset