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Note 3 - Loans and Allowance for Credit Losses - Financing Receivable, Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Interest Only Payments [Member]
amortized cost	$ 6,396	$ 6,396
Percentage	5.57%	5.40%
Commercial real estate owner-occupied (Month)	6 months	6 months
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] | Extended Maturity [Member]
amortized cost	$ 7
Percentage	0.01%
Commercial and industrial (Month)	3 months

X

- Definition

Duration of interest only payment.

+ References

No definition available.

+ Details

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X

- Definition

Percentage of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
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X

- Definition

Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty.

+ References

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- Definition

Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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