Note 10 - Borrowings (Details Textual) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2023	Dec. 31, 2022
Other Borrowings	$ 19,043,445	$ 27,588,147
Federal Home Loan Bank, Advance	0	0
Federal Home Loan Bank Advances [Member]
Debt Instrument, Collateral Amount	54,600,000	70,100,000
Derivative Liability, Fair Value of Collateral	44,700,000	61,100,000
Discount Window Borrowing [Member] \| Federal Home Loan Bank of Atlanta [Member]
Debt Instrument, Face Amount	$ 69,200,000	$ 44,100,000
Long-Term Debt, Weighted Average Interest Rate, over Time	4.42%	4.50%
Debt Instrument, Collateral Amount	$ 368,300,000	$ 72,600,000
Derivative Liability, Fair Value of Collateral	$ 329,400,000	69,200,000
Federal Reserve Bank Term Funding Program [Member] \| Fed Funds Effective Rate Overnight Index Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	0.10%
Borrower-In-Custody Program [Member] \| Federal Home Loan Bank of Atlanta [Member]
Debt Instrument, Collateral Amount	$ 108,600,000
Derivative Liability, Fair Value of Collateral	73,400,000
Short Term Repurchase Agreements [Member]
Debt Instrument, Collateral Amount	44,700,000	52,300,000
Derivative Liability, Fair Value of Collateral	$ 41,200,000	$ 49,800,000
Debt Instrument, Interest Rate, Stated Percentage	1.49%	0.75%

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

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Amount of assets pledged to secure a debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Fair value of securities pledged as collateral against derivative liabilities.

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Amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions.

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Weighted average interest rate of long-term debt outstanding calculated over time.

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The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

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