Note 7 - Income Taxes - Significant Components of Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Net operating loss	$ 7,047	$ 7,642
Capital loss carryover	258	16
Valuation adjustment on investment in iBio, Inc.	254	512
Depreciation	(204)	(225)
Inventory	142	104
Other	34	31
Valuation allowance	(5,648)	(7,546)
Total deferred tax asset, net	$ 1,883	$ 534

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

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