Note 13 - Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Net operating loss	$ 2,206	$ 2,233
Reserves and allowances	295	225
Tax Credit carryforward	153	153
Property and equipment	194	142
Total deferred tax asset	2,848	2,753
Valuation allowance	(2,848)	(2,753)
Deferred tax asset, net