Note 11 - Other Borrowings (Details Textual) - USD ($)	1 Months Ended
Dec. 31, 2006	Dec. 31, 2022
Advance from Federal Home Loan Bank, Total		$ 380,800,000
Irrevocable Letter of Credit, Municipal Deposits		64,000,000.0
Stock Issued During Period, Value, New Issues	$ 248,000
Finance Lease, Liability, Total		3,811,000
Other Borrowings [Member]
Notes Payable, Total		8,300,000
Finance Lease, Liability, Total		$ 3,800,000
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	1.67%
Mandatorily Redeemable Securities [Member] \| Special Purpose Entity [Member]
Securities Sold under Agreements to Repurchase, Total	$ 8,000,000.0

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Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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