Fair Value Measurements - Carrying value and estimated fair value of financial instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Securities:
Available-for-sale	$ 357,576	$ 239,300
Equity securities, at fair value	2,115	1,869
Restricted securities, at cost	4,425	4,951
Carrying Value
Assets:
Cash and cash equivalents	61,599	105,799
Securities:
Available-for-sale	357,576	239,300
Held-to-maturity	99,415	105,509
Equity securities, at fair value	2,115	1,869
Restricted securities, at cost	4,425	4,951
Loans, net	1,769,300	1,646,437
Bank owned life insurance	21,170	20,998
Accrued interest receivable	5,531	4,943
Liabilities:
Deposits	2,067,740	1,881,553
FHLB advances		18,000
Subordinated debt	24,624	24,728
Federal funds purchased	25,500
Accrued interest payable	1,035	843
Carrying Value | Interest Rate Swap [Member]
Securities:
Derivative assets, at fair value	1,217
Liabilities:
Derivative liabilities, at fair value	1,217
Fair Value
Assets:
Cash and cash equivalents	61,599	105,799
Securities:
Available-for-sale	357,576	239,300
Held-to-maturity	81,161	103,258
Equity securities, at fair value	2,115	1,869
Restricted securities, at cost	4,425	4,951
Loans, net	1,676,887	1,659,396
Bank owned life insurance	21,170	20,998
Accrued interest receivable	5,531	4,943
Liabilities:
Deposits	2,065,248	1,882,132
FHLB advances		17,837
Subordinated debt	22,457	25,325
Federal funds purchased	25,500
Accrued interest payable	1,035	843
Fair Value | Interest Rate Swap [Member]
Securities:
Derivative assets, at fair value	1,217
Liabilities:
Derivative liabilities, at fair value	1,217
Fair Value, Inputs, Level 1 | Fair Value
Assets:
Cash and cash equivalents	61,599	105,799
Securities:
Equity securities, at fair value	2,115	1,869
Fair Value, Inputs, Level 2 | Fair Value
Securities:
Available-for-sale	357,576	239,300
Held-to-maturity	81,161	103,258
Restricted securities, at cost	4,425	4,951
Bank owned life insurance	21,170	20,998
Accrued interest receivable	5,531	4,943
Liabilities:
Deposits	2,065,248	1,882,132
FHLB advances		17,837
Federal funds purchased	25,500
Accrued interest payable	1,035	843
Fair Value, Inputs, Level 2 | Fair Value | Interest Rate Swap [Member]
Securities:
Derivative assets, at fair value	1,217
Liabilities:
Derivative liabilities, at fair value	1,217
Fair Value, Inputs, Level 3 | Fair Value
Securities:
Loans, net	1,676,887	1,659,396
Liabilities:
Subordinated debt	$ 22,457	$ 25,325