Note 18 - Condensed Financial Information - Parent Company Only - Condensed Statements of Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2015
Other assets	$ 12,274	$ 10,138
Total assets	1,203,541	1,237,732
Subordinated Debt, Ending Balance		5,000		$ 14,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Total	10,310	10,310
Accrued interest payable	258	338
Other liabilities	10,748	10,306
Total liabilities	1,069,934	1,140,513
Shareholders’ equity	133,607	97,219	$ 89,191
Total liabilities and shareholders’ equity	1,203,541	1,237,732
Parent Company [Member]
Cash	10,343	5,976
Investment in statutory trust	418	405
Investment in subsidiary (equity method)	131,194	104,134
Other assets	2,019	2,081
Total assets	143,974	112,596
Subordinated Debt, Ending Balance		5,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Total	10,310	10,310
Accrued interest payable	16	38
Other liabilities	41	29
Total liabilities	10,367	15,377
Shareholders’ equity	133,607	97,219
Total liabilities and shareholders’ equity	$ 143,974	$ 112,596