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Note 4 - Loans Receivable and Allowance for Loan and Lease Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Dec. 31, 2019
Balance	$ 11,148	$ 8,458	$ 10,115	$ 7,609
Charge-offs	(75)	(282)	(810)	(2,589)
Recoveries	13	129	67	183
Provisions (credits)	85	100	1,799	3,202
Balance	11,171	8,405	11,171	8,405
Total allowance for loan and lease losses	11,171	8,405	10,115	7,609	$ 11,171	$ 10,115
Business Activities Loans [Member]
Balance			10,115
Balance	11,171		11,171
Allowance for loan losses: Individually evaluated for impairment					1,568	1,496
Allowance for loan losses: Collectively evaluated for impairment					9,603	8,619
Total allowance for loan and lease losses	11,171		10,115		11,171	10,115
Loans receivable, gross: Individually evaluated for impairment					22,165	19,628
Loans receivable, gross: Collectively evaluated for impairment					729,133	792,360
Total loans receivable, gross					751,298	812,164
PCI loans individually evaluated for impairment						176
Commercial Real Estate Portfolio Segment [Member]
Balance	4,274	1,978	3,789	1,866
Charge-offs	(35)	0	(400)	0
Recoveries				2
Provisions (credits)	158	111	1,008	221
Balance	4,397	2,089	4,397	2,089
Total allowance for loan and lease losses	4,397	2,089	3,789	1,866	4,397	3,789
Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			3,789
Balance	4,397		4,397
Allowance for loan losses: Individually evaluated for impairment					1,552	1,496
Allowance for loan losses: Collectively evaluated for impairment					2,845	2,293
Total allowance for loan and lease losses	4,397		3,789		4,397	3,789
Loans receivable, gross: Individually evaluated for impairment					15,521	13,034
Loans receivable, gross: Collectively evaluated for impairment					276,546	301,380
Total loans receivable, gross					292,067	314,414
PCI loans individually evaluated for impairment
Residential Portfolio Segment [Member]
Balance	1,910	936	1,038	1,059
Charge-offs		(105)	(13)	(117)
Recoveries	1	9	1	9
Provisions (credits)	(374)	125	511	14
Balance	1,537	965	1,537	965
Total allowance for loan and lease losses	1,537	965	1,038	1,059	1,537	1,038
Residential Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			1,038
Balance	1,537		1,537
Allowance for loan losses: Individually evaluated for impairment					5
Allowance for loan losses: Collectively evaluated for impairment					1,532	1,038
Total allowance for loan and lease losses	1,537		1,038		1,537	1,038
Loans receivable, gross: Individually evaluated for impairment					3,674	3,621
Loans receivable, gross: Collectively evaluated for impairment					159,302	171,868
Total loans receivable, gross					162,976	175,489
PCI loans individually evaluated for impairment
Commercial Portfolio Segment [Member]
Balance	3,526	4,208	4,340	3,558
Charge-offs	(34)	(74)	(352)	(2,366)
Recoveries	11	117	62	164
Provisions (credits)	(33)	104	(580)	2,999
Balance	3,470	4,355	3,470	4,355
Total allowance for loan and lease losses	3,470	4,355	4,340	3,558	3,470	4,340
Commercial Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			4,340
Balance	3,470		3,470
Allowance for loan losses: Individually evaluated for impairment
Allowance for loan losses: Collectively evaluated for impairment					3,470	4,340
Total allowance for loan and lease losses	3,470		4,340		3,470	4,340
Loans receivable, gross: Individually evaluated for impairment					1,706	2,057
Loans receivable, gross: Collectively evaluated for impairment					145,542	171,642
Total loans receivable, gross					147,248	173,875
PCI loans individually evaluated for impairment						176
Consumer Portfolio Segment [Member]
Balance	534	664	341	641
Charge-offs	(6)	(103)	(45)	(106)
Recoveries	1	3	4	8
Provisions (credits)	11	(196)	240	(175)
Balance	540	368	540	368
Total allowance for loan and lease losses	540	368	341	641	540	341
Consumer Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			341
Balance	540		540
Allowance for loan losses: Individually evaluated for impairment					11
Allowance for loan losses: Collectively evaluated for impairment					529	341
Total allowance for loan and lease losses	540		341		540	341
Loans receivable, gross: Individually evaluated for impairment					1,264	916
Loans receivable, gross: Collectively evaluated for impairment					71,863	85,018
Total loans receivable, gross					73,127	85,934
PCI loans individually evaluated for impairment
Construction Portfolio Segment [Member]
Balance	666	467	477	350
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	152	(19)	341	98
Balance	818	448	818	448
Total allowance for loan and lease losses	818	448	477	350	818	477
Construction Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			477
Balance	818		818
Allowance for loan losses: Individually evaluated for impairment					0	0
Allowance for loan losses: Collectively evaluated for impairment					818	477
Total allowance for loan and lease losses	818		477		818	477
Loans receivable, gross: Individually evaluated for impairment
Loans receivable, gross: Collectively evaluated for impairment					61,534	48,388
Total loans receivable, gross					61,534	48,388
PCI loans individually evaluated for impairment
Construction to Permanent Portfolio Segment [Member]
Balance	149	105	130	108
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	40	10	59	7
Balance	189	115	189	115
Total allowance for loan and lease losses	189	115	130	108	189	130
Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			130
Balance	189		189
Allowance for loan losses: Individually evaluated for impairment					0	0
Allowance for loan losses: Collectively evaluated for impairment					189	130
Total allowance for loan and lease losses	189		130		189	130
Loans receivable, gross: Individually evaluated for impairment					0	0
Loans receivable, gross: Collectively evaluated for impairment					14,346	14,064
Total loans receivable, gross					14,346	14,064
PCI loans individually evaluated for impairment
Unallocated Financing Receivables [Member]
Balance	89	100		27
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	131	(35)	220	38
Balance	220	65	220	65
Total allowance for loan and lease losses	220	$ 65		$ 27	220
Unallocated Financing Receivables [Member] | Business Activities Loans [Member]
Balance
Balance	220		220
Allowance for loan losses: Individually evaluated for impairment					0	0
Allowance for loan losses: Collectively evaluated for impairment					220
Total allowance for loan and lease losses	$ 220				220
Loans receivable, gross: Individually evaluated for impairment					0	0
Loans receivable, gross: Collectively evaluated for impairment
Total loans receivable, gross
PCI loans individually evaluated for impairment

X

- Definition

The amount of acquired loans that were individually evaluated for impairment.

+ References

No definition available.

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

+ References

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-Publisher FASB
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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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