Note 17 - Fair Values of Financial Instruments - Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale, Excluding Accrued Interest	$ 370,614	$ 331,121
Junior subordinated debt	8,830	8,733
Interest Rate Swap [Member]
Interest rate swaps - gross assets	11,660	17,195
Interest rate swaps - gross liabilities	11,660	17,195
Marketable Securities and Mutual Funds [Member]
Equity securities at fair value	3,354	2,593
Equity Securities, Held In Correspondent Banks [Member]
Equity securities at fair value	17,021	16,502
Reported Value Measurement [Member]
Cash and cash equivalents	41,505	27,922
Debt Securities, Available-for-Sale, Excluding Accrued Interest	370,614	331,121
Investment securities - HTM	48,199	42,687
Loans, net of allowance	2,149,624	2,098,363
Deposits	2,350,249
FHLB short-term advances and repurchase agreements	47,183	15,591
FHLB long-term advances	80,000	60,000
Junior subordinated debt	8,830	8,733
Subordinated debt	16,738	16,697
Deposits, noninterest-bearing		432,143
Deposits, interest-bearing		1,913,801
FHLB short-term advances and repurchase agreements	47,183	15,591
Reported Value Measurement [Member] \| Interest Rate Swap [Member]
Interest rate swaps - gross assets	11,660	17,195
Interest rate swaps - gross liabilities	11,660	17,195
Reported Value Measurement [Member] \| Marketable Securities and Mutual Funds [Member]
Equity securities at fair value	3,354	2,593
Reported Value Measurement [Member] \| Equity Securities, Held In Correspondent Banks [Member]
Equity securities at fair value	17,021	16,502
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	41,505	27,922
Debt Securities, Available-for-Sale, Excluding Accrued Interest	370,614	331,121
Investment securities - HTM	50,540	42,144
Loans, net of allowance	2,080,142	1,973,780
Deposits	2,349,856
FHLB short-term advances and repurchase agreements	47,193	15,577
FHLB long-term advances	80,079	59,620
Junior subordinated debt	8,830	8,733
Subordinated debt	15,252	14,738
Deposits, noninterest-bearing		432,143
Deposits, interest-bearing		1,826,868
FHLB short-term advances and repurchase agreements	47,193	15,577
Estimate of Fair Value Measurement [Member] \| Interest Rate Swap [Member]
Interest rate swaps - gross assets	11,660	17,195
Interest rate swaps - gross liabilities	11,660	17,195
Estimate of Fair Value Measurement [Member] \| Marketable Securities and Mutual Funds [Member]
Equity securities at fair value	3,354	2,593
Estimate of Fair Value Measurement [Member] \| Equity Securities, Held In Correspondent Banks [Member]
Equity securities at fair value	17,021	16,502
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	41,505	27,922
Debt Securities, Available-for-Sale, Excluding Accrued Interest	0	0
Investment securities - HTM	0	0
Loans, net of allowance	0	0
Deposits	0
FHLB short-term advances and repurchase agreements	0	0
FHLB long-term advances	0	0
Junior subordinated debt	0	0
Subordinated debt	0	0
Deposits, noninterest-bearing		0
Deposits, interest-bearing		0
FHLB short-term advances and repurchase agreements	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member] \| Interest Rate Swap [Member]
Interest rate swaps - gross assets	0	0
Interest rate swaps - gross liabilities	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member] \| Marketable Securities and Mutual Funds [Member]
Equity securities at fair value	3,354	2,593
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member] \| Equity Securities, Held In Correspondent Banks [Member]
Equity securities at fair value	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents	0	0
Debt Securities, Available-for-Sale, Excluding Accrued Interest	367,010	326,310
Investment securities - HTM	1,694	1,821
Loans, net of allowance	0	0
Deposits	2,349,856
FHLB short-term advances and repurchase agreements	47,193	15,577
FHLB long-term advances	80,079	0
Junior subordinated debt	0	0
Subordinated debt	15,252	14,738
Deposits, noninterest-bearing		432,143
Deposits, interest-bearing		0
FHLB short-term advances and repurchase agreements	47,193	15,577
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Interest rate swaps - gross assets	11,660	17,195
Interest rate swaps - gross liabilities	11,660	17,195
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Marketable Securities and Mutual Funds [Member]
Equity securities at fair value	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Equity Securities, Held In Correspondent Banks [Member]
Equity securities at fair value	17,021	16,502
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member]
Cash and cash equivalents	0	0
Debt Securities, Available-for-Sale, Excluding Accrued Interest	3,604	4,811
Investment securities - HTM	48,846	40,323
Loans, net of allowance	2,080,142	1,973,780
Deposits	0
FHLB short-term advances and repurchase agreements	0	0
FHLB long-term advances	0	59,620
Junior subordinated debt	8,830	8,733
Subordinated debt	0	0
Deposits, noninterest-bearing		0
Deposits, interest-bearing		1,826,868
FHLB short-term advances and repurchase agreements	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member] \| Interest Rate Swap [Member]
Interest rate swaps - gross assets	0	0
Interest rate swaps - gross liabilities	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member] \| Marketable Securities and Mutual Funds [Member]
Equity securities at fair value	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member] \| Equity Securities, Held In Correspondent Banks [Member]
Equity securities at fair value	$ 0	$ 0

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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Fair value portion of long-term borrowing from Federal Home Loan Bank (FHLBank).

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The fair value portion of interest bearing deposit liabilities.

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The fair value portion of noninterest bearing deposit liabilities.

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No definition available.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

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Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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