Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Note 5 - Allowances for Loan Losses - Activity in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Beginning balance			$ 8,615				$ 8,599	$ 8,615	$ 8,599	$ 9,155
Charge-offs								(1,482)	(2,438)	(1,576)
Recoveries								228	154	120
Provision for loan losses	$ 1,155	$ 450	300	$ 600	$ 500	$ 800	400	1,905	2,300	900
Ending balance	9,266			8,615				9,266	8,615	8,599
Allowance for loan losses, individually evaluated for impairment											$ 556	$ 1,473
Allowance for loan losses, collectively evaluated for impairment											8,710	7,142
Total allowance for loan losses	9,266		8,615	8,615			8,599	9,266	8,599	9,155	9,266	8,615
Loans evaluated individually											18,882	18,030
Loans evaluated collectively											1,729,214	1,418,584
Total loans receivable											1,748,096	1,436,614
Commercial Real Estate Portfolio Segment [Member]
Beginning balance			2,462				3,774	2,462	3,774	3,254
Charge-offs									(1,603)
Recoveries									50	54
Provision for loan losses								581	241	466
Ending balance	3,043			2,462				3,043	2,462	3,774
Allowance for loan losses, individually evaluated for impairment											265	295
Allowance for loan losses, collectively evaluated for impairment											2,778	2,167
Total allowance for loan losses	3,043		2,462	2,462			3,774	3,043	3,774	3,254	3,043	2,462
Loans evaluated individually											10,331	10,947
Loans evaluated collectively											603,300	504,791
Total loans receivable											613,631	515,738
Construction and Land Development Portfolio Segment [Member]
Beginning balance			777				725	777	725	557
Charge-offs
Recoveries
Provision for loan losses								(89)	52	168
Ending balance	688			777				688	777	725
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment											688	777
Total allowance for loan losses	688		777	777			725	688	725	557	688	777
Loans evaluated individually
Loans evaluated collectively											121,395	121,042
Total loans receivable											121,395	121,042
Commercial Portfolio Segment [Member]
Beginning balance			1,754				1,317	1,754	1,317	2,884
Charge-offs								(1,356)	(151)	(1,366)
Recoveries								217	81	64
Provision for loan losses								316	507	(265)
Ending balance	931			1,754				931	1,754	1,317
Allowance for loan losses, individually evaluated for impairment											23	867
Allowance for loan losses, collectively evaluated for impairment											908	887
Total allowance for loan losses	931		1,754	1,754			1,317	931	1,317	2,884	931	1,754
Loans evaluated individually											3,087	3,662
Loans evaluated collectively											220,819	196,761
Total loans receivable											223,906	200,423
Owner Occupied Real Estate [Member]
Beginning balance			2,033				1,737	2,033	1,737	1,382
Charge-offs									(465)	(157)
Recoveries								2	20
Provision for loan losses								257	741	512
Ending balance	2,292			2,033				2,292	2,033	1,737
Allowance for loan losses, individually evaluated for impairment											268	217
Allowance for loan losses, collectively evaluated for impairment											2,024	1,816
Total allowance for loan losses	2,292		2,033	2,033			1,737	2,292	1,737	1,382	2,292	2,033
Loans evaluated individually											3,634	2,560
Loans evaluated collectively											420,766	365,335
Total loans receivable											424,400	367,895
Consumer Portfolio Segment [Member]
Beginning balance			577				573	577	573	588
Charge-offs								(126)	(219)	(53)
Recoveries								9	3	2
Provision for loan losses								130	220	36
Ending balance	590			577				590	577	573
Allowance for loan losses, individually evaluated for impairment												94
Allowance for loan losses, collectively evaluated for impairment											590	483
Total allowance for loan losses	590		577	577			573	590	573	588	590	577
Loans evaluated individually											1,062	861
Loans evaluated collectively											100,258	90,291
Total loans receivable											101,320	91,152
Residential Portfolio Segment [Member]
Beginning balance			894				392	894	392	58
Charge-offs
Recoveries
Provision for loan losses								811	502	334
Ending balance	1,705			894				1,705	894	392
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment											1,705	894
Total allowance for loan losses	1,705		894	894			392	1,705	392	58	1,705	894
Loans evaluated individually											768
Loans evaluated collectively											262,676	140,364
Total loans receivable											263,444	140,364
Unallocated Financing Receivables [Member]
Beginning balance			118				81	118	81	432
Charge-offs
Recoveries
Provision for loan losses								(101)	37	(351)
Ending balance	17			118				17	118	81
Allowance for loan losses, individually evaluated for impairment
Allowance for loan losses, collectively evaluated for impairment											17	118
Total allowance for loan losses	$ 17		$ 118	$ 118			$ 81	$ 17	$ 81	$ 432	17	118
Loans evaluated individually
Loans evaluated collectively
Total loans receivable