Note 14 - Income Taxes - Income Tax Expense Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current	$ (173)	$ (346)
Deferred	505	121	2,523
Net operating loss	1,725	2,255	(647)
Establish state deferred tax asset	(1,577)
Change in federal statutory rate			20,274
Change in valuation allowance			(54,049)
	$ 480	$ 2,030	$ (31,899)