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Note 4 - Loans Receivables and Allowance for Loan and Lease Losses - Recorded Investment in TDRs (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021	Sep. 30, 2022 USD ($)	Sep. 30, 2021	Dec. 31, 2021 USD ($)
Number of contracts	8		8		7
Recorded investment	$ 10,396		$ 10,396		$ 10,394
Number of Loans	0	0	1	0
Outstanding Recorded Investment, Pre-Modification			$ 118
Outstanding Recorded Investment, Post-Modification	$ 0		$ 116
Non-Accrual Loans [Member]
Number of contracts	4		4		3
TDRs included in non-accrual loans	$ (9,699)		$ (9,699)		$ (9,688)
Accrual Loans [Member]
Number of contracts	4		4		4
Recorded investment	$ 697		$ 697		$ 706
Payment Deferral [Member]
Outstanding Recorded Investment, Post-Modification	$ 0		$ 116
Commercial Real Estate Portfolio Segment [Member]
Number of contracts	1		1		1
Recorded investment	$ 8,819		$ 8,819		$ 8,884
Commercial Portfolio Segment [Member]
Number of contracts	1		1		0
Recorded investment	$ 116		$ 116		$ 0
Number of Loans			1
Outstanding Recorded Investment, Pre-Modification			$ 118
Outstanding Recorded Investment, Post-Modification			$ 116
Residential Portfolio Segment [Member]
Number of contracts	3		3		3
Recorded investment	$ 829		$ 829		$ 870
Consumer Portfolio Segment [Member]
Number of contracts	3		3		3
Recorded investment	$ 632		$ 632		$ 640

X

- Definition

Amount of financing receivable modified as troubled debt restructuring included in nonaccrual.

+ References

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- Definition

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+ References

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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