Note 13 - Income Taxes - Effects of Temporary Differences of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Allowance for loan losses	$ 1,228	$ 1,197
Deferred compensation	1,064	1,045
Deferred commissions and fees	308	313
Impairment of other real estate owned	99	532
Federal net operating loss carryforwards	1,549	1,486
State net operating loss carryforwards	280	288
Federal alternative minimum tax and general business credits carryforwards	167	340
Unrealized loss on securities available-for-sale	797	400
Other	621	418
Total gross deferred tax assets	6,113	6,019
Deferred tax liabilities:
Premises and equipment	888	214
Core deposit intangible	463
Limited partnerships	122	81
Cash flow hedges		111
Other	31	24
Total gross deferred tax liabilities	1,504	430
Net deferred tax asset, included in other assets	$ 4,609	$ 5,589