Fair Value Measurements - Carrying value and estimated fair value of financial instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Securities:
Available-for-sale	$ 366,546	$ 239,300
Equity securities, at fair value	1,913	1,869
Restricted securities, at cost	4,421	4,951
Carrying Value
Assets:
Cash and cash equivalents	74,756	105,799
Securities:
Available-for-sale	366,546	239,300
Held-to-maturity	100,598	105,509
Equity securities, at fair value	1,913	1,869
Restricted securities, at cost	4,421	4,951
Loans, net of unearned income	1,705,082	1,646,437
Bank owned life insurance	21,071	20,998
Accrued interest receivable	4,744	4,943
Liabilities:
Deposits	2,063,341	1,881,553
FHLB advances		18,000
Subordinated debt	24,603	24,728
Accrued interest payable	643	843
Fair Value
Assets:
Cash and cash equivalents	74,756	105,799
Securities:
Available-for-sale	366,546	239,300
Held-to-maturity	81,765	103,258
Equity securities, at fair value	1,913	1,869
Restricted securities, at cost	4,421	4,951
Loans, net of unearned income	1,631,043	1,659,396
Bank owned life insurance	21,071	20,998
Accrued interest receivable	4,744	4,943
Liabilities:
Deposits	2,057,563	1,882,132
FHLB advances		17,837
Subordinated debt	22,517	25,325
Accrued interest payable	643	843
Fair Value, Inputs, Level 1 | Fair Value
Assets:
Cash and cash equivalents	74,756	105,799
Securities:
Equity securities, at fair value	1,913	1,869
Fair Value, Inputs, Level 2 | Fair Value
Securities:
Available-for-sale	366,546	239,300
Held-to-maturity	81,765	103,258
Restricted securities, at cost	4,421	4,951
Bank owned life insurance	21,071	20,998
Accrued interest receivable	4,744	4,943
Liabilities:
Deposits	2,057,563	1,882,132
FHLB advances		17,837
Accrued interest payable	643	843
Fair Value, Inputs, Level 3 | Fair Value
Securities:
Loans, net of unearned income	1,631,043	1,659,396
Liabilities:
Subordinated debt	$ 22,517	$ 25,325