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Fair Value Measurements - Carrying value and estimated fair value of financial instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Securities:
Available-for-sale, fair value	$ 124,469	$ 130,257
Equity securities, at fair value	2,888	2,832
Restricted securities, at cost	7,634	7,634
Carrying Value
Assets:
Cash and cash equivalents	169,060	122,469
Securities:
Available-for-sale, fair value	124,469	130,257
Held-to-maturity	91,172	92,009
Equity securities, at fair value	2,888	2,832
Restricted securities, at cost	7,634	7,634
Loans, net	1,851,646	1,853,458
Interest rate swap agreements	408	549
Accrued interest receivable	5,902	5,996
Liabilities:
Deposits	1,922,175	1,892,415
Federal Reserve Bank borrowings		56,000
Federal Home Loan Bank advances	56,000
Subordinated debt	24,812	24,791
Interest rate swap agreements	408	549
Accrued interest payable	2,072	2,394
Fair Value
Assets:
Cash and cash equivalents	169,060	122,469
Securities:
Available-for-sale, fair value	124,469	130,257
Held-to-maturity	77,456	76,270
Equity securities, at fair value	2,888	2,832
Restricted securities, at cost	7,634	7,634
Loans, net	1,755,704	1,749,721
Interest rate swap agreements	408	549
Accrued interest receivable	5,902	5,996
Liabilities:
Deposits	1,924,014	1,895,118
Federal Reserve Bank borrowings		56,000
Federal Home Loan Bank advances	56,000
Subordinated debt	22,364	22,126
Interest rate swap agreements	408	549
Accrued interest payable	2,072	2,394
Fair Value, Inputs, Level 1 | Fair Value
Assets:
Cash and cash equivalents	169,060	122,469
Securities:
Equity securities, at fair value	2,888	2,832
Fair Value, Inputs, Level 2 | Fair Value
Securities:
Available-for-sale, fair value	124,469	130,257
Held-to-maturity	77,456	76,270
Restricted securities, at cost	7,634	7,634
Interest rate swap agreements	408	549
Accrued interest receivable	5,902	5,996
Liabilities:
Deposits	1,924,014	1,895,118
Federal Reserve Bank borrowings		56,000
Federal Home Loan Bank advances	56,000
Interest rate swap agreements	408	549
Accrued interest payable	2,072	2,394
Fair Value, Inputs, Level 3 | Fair Value
Securities:
Loans, net	1,755,704	1,749,721
Liabilities:
Subordinated debt	$ 22,364	$ 22,126

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Fair value portion of the accrued interest payable.

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

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Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

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