Note 14 - Income Taxes - Reconciliation of the Anticipated Income Tax Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income taxes at statutory Federal rate	$ (780)	$ 858	$ 2,387
State taxes, net of Federal benefit	(228)	233	377
Nondeductible expenses	14	15	11
Benefit of change in Sec 382 classification		(500)	(2,774)
Deferred tax adjustment resulting from tax rate change		198	2,809
Other	95	86	65
Income tax (benefit) expense	$ (899)	$ 890	$ 2,875