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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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019		Dec. 31, 2018
Balance	$ 7,823	$ 6,485	$ 7,609	$ 6,297
Charge-offs	(2,307)	(13)	(2,307)	(13)
Recoveries	5	3	54	6
Provisions (credits)	2,937	50	3,102	235
Balance	8,458	6,525	8,458	6,525
Total allowance for loan losses	7,823	6,485	8,458	6,525	$ 8,458		$ 7,609
Business Activities Loans [Member]
Balance			7,609
Balance	8,458		8,458
Allowance for loan losses: Individually evaluated for impairment							1,545
Allowance for loan losses: Collectively evaluated for impairment					8,458		6,064
Total allowance for loan losses	8,458		8,458		8,458		7,609
Loans receivable, gross: Individually evaluated for impairment					20,993		21,218
PCI loans individually evaluated for impairment					417		615
Loans receivable, gross: Collectively evaluated for impairment					790,367		758,543
Total loans receivable, gross					811,777	[1]	780,376
Commercial Real Estate Portfolio Segment [Member]
Balance	1,862	2,480	1,866	2,212
Charge-offs	0	0	0	0
Recoveries	2	3	2	6
Provisions (credits)	114	(178)	110	87
Balance	1,978	2,305	1,978	2,305
Total allowance for loan losses	1,862	2,480	1,978	2,305	1,978		1,866
Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			1,866
Balance	1,978		1,978
Allowance for loan losses: Individually evaluated for impairment					0		0
Allowance for loan losses: Collectively evaluated for impairment					1,978		1,866
Total allowance for loan losses	1,978		1,978		1,978		1,866
Loans receivable, gross: Individually evaluated for impairment					13,466		4,606
PCI loans individually evaluated for impairment
Loans receivable, gross: Collectively evaluated for impairment					298,294		270,332
Total loans receivable, gross					311,760		274,938
Residential Portfolio Segment [Member]
Balance	1,389	1,073	1,059	959
Charge-offs	(12)	0	(12)	0
Recoveries		0		0
Provisions (credits)	(441)	23	(111)	137
Balance	936	1,096	936	1,096
Total allowance for loan losses	1,389	1,073	936	1,096	936		1,059
Residential Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			1,059
Balance	936		936
Allowance for loan losses: Individually evaluated for impairment							216
Allowance for loan losses: Collectively evaluated for impairment					936		843
Total allowance for loan losses	936		936		936		1,059
Loans receivable, gross: Individually evaluated for impairment					3,851		2,302
PCI loans individually evaluated for impairment
Loans receivable, gross: Collectively evaluated for impairment					159,174		154,998
Total loans receivable, gross					163,025		157,300
Commercial Portfolio Segment [Member]
Balance	3,490	1,759	3,558	2,023
Charge-offs	(2,292)		(2,292)
Recoveries			47
Provisions (credits)	3,010	237	2,895	(27)
Balance	4,208	1,996	4,208	1,996
Total allowance for loan losses	3,490	1,759	4,208	1,996	4,208		3,558
Commercial Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			3,558
Balance	4,208		4,208
Allowance for loan losses: Individually evaluated for impairment							1,299
Allowance for loan losses: Collectively evaluated for impairment					4,208		2,259
Total allowance for loan losses	4,208		4,208		4,208		3,558
Loans receivable, gross: Individually evaluated for impairment					2,676		4,646
PCI loans individually evaluated for impairment					417
Loans receivable, gross: Collectively evaluated for impairment					178,111		186,591
Total loans receivable, gross					181,204		191,852
Consumer Portfolio Segment [Member]
Balance	592	546	641	568
Charge-offs	(3)	(13)	(3)	(13)
Recoveries	3		5
Provisions (credits)	72	(10)	21	(32)
Balance	664	523	664	523
Total allowance for loan losses	592	546	664	523	664		641
Consumer Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			641
Balance	664		664
Allowance for loan losses: Individually evaluated for impairment							30
Allowance for loan losses: Collectively evaluated for impairment					664		611
Total allowance for loan losses	664		664		664		641
Loans receivable, gross: Individually evaluated for impairment					1,000		864
PCI loans individually evaluated for impairment
Loans receivable, gross: Collectively evaluated for impairment					99,360		93,705
Total loans receivable, gross					100,360		94,569
Construction Portfolio Segment [Member]
Balance	355	488	350	481
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	112	11	117	18
Balance	467	499	467	499
Total allowance for loan losses	355	488	467	499	467		350
Construction Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			350
Balance	467		467
Allowance for loan losses: Individually evaluated for impairment					0		0
Allowance for loan losses: Collectively evaluated for impairment					467		350
Total allowance for loan losses	467		467		467		350
Loans receivable, gross: Individually evaluated for impairment							8,800
PCI loans individually evaluated for impairment
Loans receivable, gross: Collectively evaluated for impairment					44,180		37,240
Total loans receivable, gross					44,180		46,040
Construction to Permanent Portfolio Segment [Member]
Balance	123	61	108	54
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	(18)	19	(3)	26
Balance	105	80	105	80
Total allowance for loan losses	123	61	105	80	105		108
Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]
Balance			108
Balance	105		105
Allowance for loan losses: Individually evaluated for impairment					0		0
Allowance for loan losses: Collectively evaluated for impairment					105		108
Total allowance for loan losses	105		105		105		108
Loans receivable, gross: Individually evaluated for impairment					0		0
PCI loans individually evaluated for impairment
Loans receivable, gross: Collectively evaluated for impairment					11,248		15,677
Total loans receivable, gross					11,248		15,677
Unallocated Financing Receivables [Member]
Balance	12	78	27
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	88	(52)	73	26
Balance	100	26	100	26
Total allowance for loan losses	12	$ 78	100	$ 26	100		27
Unallocated Financing Receivables [Member] | Business Activities Loans [Member]
Balance			27
Balance	100		100
Allowance for loan losses: Individually evaluated for impairment					0		0
Allowance for loan losses: Collectively evaluated for impairment					100		27
Total allowance for loan losses	$ 100		$ 100		100		27
Loans receivable, gross: Individually evaluated for impairment					0		0
PCI loans individually evaluated for impairment
Loans receivable, gross: Collectively evaluated for impairment							0
Total loans receivable, gross							0
Commercial and Industrial Portfolio Segment [Member] | Business Activities Loans [Member]
PCI loans individually evaluated for impairment							$ 615
[1]

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.

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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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