Note 7 - Income Taxes - Significant Components of Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Net operating loss	$ 8,247	$ 13,314
Capital loss carryover	21	31
Valuation adjustment on investment in iBio, Inc.	512	707
Depreciation	(223)	(269)
Inventory	105	139
Change in estimated fair value of derivative liability	3	201
Other	143	94
Valuation allowance	(8,137)	(13,394)
Total deferred tax asset, net	$ 671	$ 823

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards.

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