Note 9 - Loans - Troubled Debt Restructuring (Details) $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($)
No. of Contracts	6
Pre-Modification Outstanding Recorded Investment	$ 6,461
Post-Modification Outstanding Recorded Investment	6,461
Specific Reserve	0
Charge-offs	$ 2,567
Commercial Portfolio Segment [Member]
No. of Contracts	4
Pre-Modification Outstanding Recorded Investment	$ 6,115
Post-Modification Outstanding Recorded Investment	6,115
Specific Reserve	0
Charge-offs	$ 2,566
Residential Mortgage and Equity Lines Portfolio Segment [Member]
No. of Contracts	2
Pre-Modification Outstanding Recorded Investment	$ 346
Post-Modification Outstanding Recorded Investment	346
Specific Reserve	0
Charge-offs	$ 1

Reflects the amount of the specific reserve related to a troubled debt restructuring.

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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
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-33

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- Definition

Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
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-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

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-Topic 310
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-Name Accounting Standards Codification
-Section 55
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
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-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-33

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- Definition

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

+ References

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- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 310
-SubTopic 40
-Name Accounting Standards Codification
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