Note 4 - Allowance for Credit Losses (Details Textual) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss	$ 12,553	$ 8,858	$ 11,974	$ 7,446
Financing Receivable, Modified, Accumulated	0		0
Financing Receivable, Modified, Subsequent Default	0		0
Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	26	44
Other Liabilities [Member]
Off-Balance-Sheet, Credit Loss, Liability	387	197
TDR Loans [Member]
Financing Receivable, Allowance for Credit Loss	0	$ 0
Collateral Pledged [Member]
Financing Receivable, Allowance for Credit Loss	$ 0		$ 0

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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

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Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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