Fair Value - Carrying amounts and estimated fair values (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Carrying Amount
Financial assets:
Cash and due from banks	$ 180,249	$ 306,179
Loans, net	1,524,816	1,273,767
Accrued interest receivable	5,554	6,643
Restricted investment in bank stocks	3,382	2,217
Financial liabilities:
Deposits	2,187,553	1,914,384
Note payable	3,000	3,000
Subordinated notes, net of issuance costs	19,431	19,376
Accrued interest payable	32	250
Fair Value.
Financial assets:
Cash and due from banks	180,249	306,179
Loans, net	1,504,301	1,260,146
Accrued interest receivable	5,554	6,643
Financial liabilities:
Deposits	2,187,553	1,914,271
Note payable	2,994	3,030
Subordinated notes, net of issuance costs	17,906	18,867
Accrued interest payable	32	250
Fair Value. | Level 1
Financial assets:
Cash and due from banks	180,249	306,179
Financial liabilities:
Deposits	2,119,769	1,831,944
Fair Value. | Level 2
Financial assets:
Accrued interest receivable	2,766	1,603
Financial liabilities:
Deposits	67,784	82,327
Note payable	2,994	3,030
Subordinated notes, net of issuance costs	17,906	18,867
Accrued interest payable	32	250
Fair Value. | Level 3
Financial assets:
Loans, net	1,504,301	1,260,146
Accrued interest receivable	$ 2,788	$ 5,040