Note 10 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Allowance for loan losses	$ 2,351	$ 2,185
Deferred compensation	620	591
Unrealized losses on securities available for sale	2,495	3,935
Foreclosed real estate write-downs	996	2,351
Interest income on non-accrual loans	541	615
Net operating loss carryforward	5,123	3,541
Other	2,263	1,472
Total deferred tax assets	14,389	14,690
Deferred loan costs	1,138	1,103
Premises and equipment	612	634
Other		619
Total deferred tax liabilities	1,750	2,356
Net deferred tax asset	$ 12,639	$ 12,334