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Note 4 - Loans and Allowance for Credit Losses on Loans - Outstanding TDRs (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Balance	$ 917	$ 962
Specific Reserve Allocation	202	214
Additional Commitment to Lend	0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Balance	917	950
Specific Reserve Allocation	202	202
Additional Commitment to Lend	0	0
Commercial and Industrial Portfolio Segment [Member] | Term [Member]
Balance	0	12
Specific Reserve Allocation	0	12
Additional Commitment to Lend	$ 0	$ 0

X

- Definition

Amount of financing receivables impaired troubled debt restructuring allocated to specific reserve

+ References

No definition available.

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X

- Definition

Amount of financing receivable modified as troubled debt restructuring.

+ 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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

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X

- Definition

Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554

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