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Note 3 - Loans and Allowance for Credit Losses - Financial Effect by Type of Modification (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Modified in period		$ 7,350
Commercial Portfolio Segment [Member]
Modified in period		6,593
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Modified in period		6,593
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member]
Modified in period		0
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member]
Modified in period		0
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member]
Modified in period		0
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member]
Modified in period		0
Retail Portfolio Segment [Member]
Modified in period		$ 757
Contractual Interest Rate Reduction [Member]
Modified in period	$ 0
Contractual Interest Rate Reduction [Member] | Commercial Portfolio Segment [Member]
Modified in period	0
Contractual Interest Rate Reduction [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Modified in period	0
Contractual Interest Rate Reduction [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member]
Modified in period	0
Contractual Interest Rate Reduction [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member]
Modified in period	0
Contractual Interest Rate Reduction [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member]
Modified in period	0
Contractual Interest Rate Reduction [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member]
Modified in period	0
Contractual Interest Rate Reduction [Member] | Retail Portfolio Segment [Member]
Modified in period	0
Contractual Interest Rate Reduction [Member] | Retail Portfolio Segment [Member] | Loans Categorized as 1-4 Family Mortgages [Member]
Modified in period	0
Contractual Interest Rate Reduction [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member]
Modified in period	0
Extended Maturity [Member]
Modified in period	28,813
Extended Maturity [Member] | Commercial Portfolio Segment [Member]
Modified in period	28,813
Extended Maturity [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Modified in period	17,919
Extended Maturity [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member]
Modified in period	0
Extended Maturity [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member]
Modified in period	0
Extended Maturity [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member]
Modified in period	10,894
Extended Maturity [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member]
Modified in period	0
Extended Maturity [Member] | Retail Portfolio Segment [Member]
Modified in period	0
Extended Maturity [Member] | Retail Portfolio Segment [Member] | Loans Categorized as 1-4 Family Mortgages [Member]
Modified in period	0
Extended Maturity [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member]
Modified in period	0
Principal Forgiveness [Member]
Modified in period	0
Principal Forgiveness [Member] | Commercial Portfolio Segment [Member]
Modified in period	0
Principal Forgiveness [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Modified in period	0
Principal Forgiveness [Member] | Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member]
Modified in period	0
Principal Forgiveness [Member] | Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member]
Modified in period	0
Principal Forgiveness [Member] | Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member]
Modified in period	0
Principal Forgiveness [Member] | Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member]
Modified in period	0
Principal Forgiveness [Member] | Retail Portfolio Segment [Member]
Modified in period	0
Principal Forgiveness [Member] | Retail Portfolio Segment [Member] | Loans Categorized as 1-4 Family Mortgages [Member]
Modified in period	0
Principal Forgiveness [Member] | Retail Portfolio Segment [Member] | Other Consumer Loans [Member]
Modified in period	$ 0

X

- 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
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

Reference 3: 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

+ Details

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