Note 17 - Income Taxes - Components of the Net Deferred Income Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued compensation	$ 154	$ 69
Inventory adjustments	708	279
Deferred rent	22	12
Deferred revenue	23	15
Deferred financing costs		643
Depreciation and amortization - noncurrent	252	293
Share-based compensation	273	57
Net operating loss and tax credit carryforwards - noncurrent	20,196	17,529
Section 481A Adjustment		(32)
Other	2	5
Gross deferred tax asset	21,630	18,870
Valuation allowance	(21,630)	(18,870)
Net deferred tax asset