Note 14 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Federal statutory rate	21.00%	21.00%	35.00%
Federal statutory rate times financial statement income (loss)	$ 2,310	$ 2,273	$ 2,294
Change in valuation allowance			(54,049)
Tax-exempt income	(66)	(80)	(196)
Establish state deferred tax asset	(1,577)
Non-taxable life insurance income	(86)	(92)	(144)
Restricted stock vesting	(137)	(115)	(121)
Change in federal statutory rate			20,274
Other, net	36	44	43
	$ 480	$ 2,030	$ (31,899)