Note 13 - Fair Value Measurements - Carrying Amount and Estimated Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Total available-for-sale debt securities, fair value	$ 331,457	$ 344,040
Loans held-for-sale	2,089	1,483
Reported Value Measurement [Member]
Cash and cash equivalents	83,353	111,949
Held-to-maturity securities	225,764	224,233
Total available-for-sale debt securities, fair value	331,457	344,040
Restricted investments in bank stock	3,961	3,905
Loans and leases, net	1,779,136	1,666,292
Loans held-for-sale	2,054	1,457
Accrued interest receivable	9,632	9,092
Interest rate swaps	209	171
Secured borrowings	6,266	7,372
Accrued interest payable	4,988	3,042
Interest rate swaps	1,224	2,332
Short-term borrowings		117,000
Reported Value Measurement [Member] \| Deposits with No Stated Maturities [Member]
Deposits	2,001,920	1,945,456
Reported Value Measurement [Member] \| Time Deposits [Member]
Deposits	338,900	212,969
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	83,353	111,949
Held-to-maturity securities	194,575	197,176
Total available-for-sale debt securities, fair value	331,457	344,040
Restricted investments in bank stock	3,961	3,905
Loans and leases, net	1,672,690	1,532,195
Loans held-for-sale	2,089	1,483
Accrued interest receivable	9,632	9,092
Interest rate swaps	209	171
Secured borrowings	5,723	8,067
Accrued interest payable	4,988	3,042
Interest rate swaps	1,224	2,332
Short-term borrowings		117,010
Estimate of Fair Value Measurement [Member] \| Deposits with No Stated Maturities [Member]
Deposits	2,001,920	1,945,456
Estimate of Fair Value Measurement [Member] \| Time Deposits [Member]
Deposits	337,629	210,423
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	83,353	111,949
Held-to-maturity securities	0	0
Total available-for-sale debt securities, fair value	0	0
Restricted investments in bank stock	0	0
Loans and leases, net	0	0
Loans held-for-sale	0	0
Accrued interest receivable	0	0
Interest rate swaps	0	0
Secured borrowings	0	0
Accrued interest payable	0	0
Interest rate swaps	0	0
Short-term borrowings		0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member] \| Deposits with No Stated Maturities [Member]
Deposits	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member] \| Time Deposits [Member]
Deposits	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents	0	0
Held-to-maturity securities	194,575	197,176
Total available-for-sale debt securities, fair value	331,457	344,040
Restricted investments in bank stock	3,961	3,905
Loans and leases, net	0	0
Loans held-for-sale	2,089	1,483
Accrued interest receivable	9,632	9,092
Interest rate swaps	209	171
Secured borrowings	0	0
Accrued interest payable	4,988	3,042
Interest rate swaps	1,224	2,332
Short-term borrowings		117,010
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Deposits with No Stated Maturities [Member]
Deposits	2,001,920	1,945,456
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Time Deposits [Member]
Deposits	337,629	210,423
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member]
Cash and cash equivalents	0	0
Held-to-maturity securities	0	0
Total available-for-sale debt securities, fair value	0	0
Restricted investments in bank stock	0	0
Loans and leases, net	1,672,690	1,532,195
Loans held-for-sale	0	0
Accrued interest receivable	0	0
Interest rate swaps	0	0
Secured borrowings	5,723	8,067
Accrued interest payable	0	0
Interest rate swaps	0	0
Short-term borrowings		0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member] \| Deposits with No Stated Maturities [Member]
Deposits	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member] \| Time Deposits [Member]
Deposits	$ 0	$ 0

Fair value portion of accrued interest payable.

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Fair Value portion of accrued interest receivable.

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

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No definition available.

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Amount 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 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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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 as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

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Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

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- Definition

Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.

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- Definition

Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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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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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

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