Note 6 - Fair value Measurements - Schedule of Financial Assets and Liabilities Fair Values (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Reported Value Measurement [Member]
Cash and cash equivalents	$ 98,662	$ 157,617
Held-to-maturity securities	66,845	73,215
Federal Home Loan Bank stock	11,302	10,000
Loans, net	1,281,741	1,136,449
Loans held for sale	1,504
Accrued interest receivable	4,775	4,015
Bank-owned life insurance	15,178	14,945
Deposits, other than certificates of deposit	411,122	393,018
Certificates of deposit	656,316	605,515
Federal Home Loan Bank advances	264,815	234,000
Accrued interest payable	1,839	2,207
Interest-bearing time deposits		100
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	98,662	157,617
Held-to-maturity securities	62,547	67,505
Federal Home Loan Bank stock	11,302	10,000
Loans, net	1,234,293	1,079,916
Loans held for sale	1,504
Accrued interest receivable	4,775	4,015
Bank-owned life insurance	15,178	14,945
Deposits, other than certificates of deposit	411,122	393,018
Certificates of deposit	656,799	606,387
Federal Home Loan Bank advances	265,893	232,027
Accrued interest payable	1,839	2,207
Interest-bearing time deposits		100
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	98,662	157,617
Held-to-maturity securities	0	0
Federal Home Loan Bank stock	0	0
Loans, net	0	0
Loans held for sale	0
Accrued interest receivable	4,775	4,015
Bank-owned life insurance	0	0
Deposits, other than certificates of deposit	0	0
Certificates of deposit	0	0
Federal Home Loan Bank advances	0	0
Accrued interest payable	1,839	2,207
Interest-bearing time deposits		0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents	0	0
Held-to-maturity securities	62,547	67,505
Federal Home Loan Bank stock	11,302	10,000
Loans, net	0	0
Loans held for sale	1,504
Accrued interest receivable	0	0
Bank-owned life insurance	15,178	14,945
Deposits, other than certificates of deposit	411,122	393,018
Certificates of deposit	656,799	606,387
Federal Home Loan Bank advances	265,893	232,027
Accrued interest payable	0	0
Interest-bearing time deposits		100
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member]
Cash and cash equivalents	0	0
Held-to-maturity securities	0	0
Federal Home Loan Bank stock	0	0
Loans, net	1,234,293	1,079,916
Loans held for sale	0
Accrued interest receivable	0	0
Bank-owned life insurance	0	0
Deposits, other than certificates of deposit	0	0
Certificates of deposit	0	0
Federal Home Loan Bank advances	0	0
Accrued interest payable	$ 0	0
Interest-bearing time deposits		$ 0

Fair value portion of interest payable.

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Fair value portion of amount interest receivable.

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Fair value portion of certificate of deposits.

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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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Fair value portion of deposit liabilities held by the entity, excluding, certificate of deposits.

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Fair value portion of interest-bearing time deposits.

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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 the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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

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

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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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