Note 14 - Income Taxes - Reconciliation of the Anticipated Income Tax Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income taxes at statutory Federal rate	$ (873)	$ (780)	$ 858
State taxes, net of Federal benefit	(191)	(228)	233
Deferred tax valuation allowance	1,938
Reversal UTP on Federal DTA	(1,132)
Nondeductible expenses	8	14	15
Benefit of change in Sec 382 classification			(500)
Deferred tax adjustment resulting from tax rate change			198
Other	(87)	95	86
Income tax (benefit) expense	$ (337)	$ (899)	$ 890