Note 5 - Loans and the Allowance for Loan Losses - Loans Modified as TDRs (Details) $ in Thousands	6 Months Ended
Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)
Number of loans	2	10
Pre-modification outstanding recorded investment	$ 8,849	$ 12,633
Post-modification outstanding recorded investment	$ 8,349	$ 12,633
Commercial Portfolio Segment [Member]
Number of loans	1	3
Pre-modification outstanding recorded investment	$ 98	$ 631
Post-modification outstanding recorded investment	$ 98	$ 631
Commercial Real Estate Portfolio Segment [Member]
Number of loans	1	3
Pre-modification outstanding recorded investment	$ 8,751	$ 8,603
Post-modification outstanding recorded investment	$ 8,251	$ 8,603
Commercial Construction Portfolio Segment [Member]
Number of loans		1
Pre-modification outstanding recorded investment		$ 1,641
Post-modification outstanding recorded investment		$ 1,641
Residential Portfolio Segment [Member]
Number of loans		3
Pre-modification outstanding recorded investment		$ 1,758
Post-modification outstanding recorded investment		$ 1,758

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

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, after troubled debt restructuring, of modified financing receivable.

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

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