Loans and Allowance for Credit Losses on Loans - Aging of Past Due Loans by Class of Loans (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Aging of Past Due Loans by Class of Loans
Loan balance	$ 3,082,452,000	$ 3,087,326,000	$ 2,824,796,000
Total	3,083,843,000	3,090,788,000
30-59 Days Past Due
Aging of Past Due Loans by Class of Loans
Loan balance	6,449,000	3,313,000
60-89 Days Past Due
Aging of Past Due Loans by Class of Loans
Loan balance	1,691,000	168,000
90 Days or Greater Past Due
Aging of Past Due Loans by Class of Loans
Loan balance	2,085,000	1,534,000
Past due
Aging of Past Due Loans by Class of Loans
Loan balance	10,224,000	5,015,000
Current
Aging of Past Due Loans by Class of Loans
Loan balance	3,073,619,000	3,085,773,000
Commercial
Aging of Past Due Loans by Class of Loans
Total	531,421,000	682,834,000
Commercial | Commercial.
Aging of Past Due Loans by Class of Loans
Total	531,421,000	682,834,000
Commercial | Commercial. | 30-59 Days Past Due
Aging of Past Due Loans by Class of Loans
Loan balance	6,449,000	2,714,000
Commercial | Commercial. | 60-89 Days Past Due
Aging of Past Due Loans by Class of Loans
Loan balance	1,691,000	168,000
Commercial | Commercial. | 90 Days or Greater Past Due
Aging of Past Due Loans by Class of Loans
Loan balance	991,000	408,000
Commercial | Commercial. | Past due
Aging of Past Due Loans by Class of Loans
Loan balance	9,130,000	3,290,000
Commercial | Commercial. | Current
Aging of Past Due Loans by Class of Loans
Loan balance	522,291,000	679,544,000
CRE - Owner Occupied
Aging of Past Due Loans by Class of Loans
Total	597,521,000	595,934,000
CRE - Owner Occupied | Real estate
Aging of Past Due Loans by Class of Loans
Total	597,521,000	595,934,000
CRE - Owner Occupied | Real estate | 90 Days or Greater Past Due
Aging of Past Due Loans by Class of Loans
Loan balance	1,094,000	1,126,000
CRE - Owner Occupied | Real estate | Past due
Aging of Past Due Loans by Class of Loans
Loan balance	1,094,000	1,126,000
CRE - Owner Occupied | Real estate | Current
Aging of Past Due Loans by Class of Loans
Loan balance	596,427,000	594,808,000
CRE - Non-Owner Occupied
Aging of Past Due Loans by Class of Loans
Total	993,621,000	902,326,000
CRE - Non-Owner Occupied | Real estate
Aging of Past Due Loans by Class of Loans
Total	993,621,000	902,326,000
CRE - Non-Owner Occupied | Real estate | Current
Aging of Past Due Loans by Class of Loans
Loan balance	993,621,000	902,326,000
Land & Construction
Aging of Past Due Loans by Class of Loans
Total	155,389,000	147,855,000
Land & Construction | Real estate
Aging of Past Due Loans by Class of Loans
Total	155,389,000	147,855,000
Land & Construction | Real estate | Current
Aging of Past Due Loans by Class of Loans
Loan balance	155,389,000	147,855,000
Home Equity
Aging of Past Due Loans by Class of Loans
Total	116,641,000	109,579,000
Home Equity | Real estate
Aging of Past Due Loans by Class of Loans
Total	116,641,000	109,579,000
Home Equity | Real estate | Current
Aging of Past Due Loans by Class of Loans
Loan balance	116,641,000	109,579,000
Multi-Family
Aging of Past Due Loans by Class of Loans
Total	221,938,000	218,856,000
Multi-Family | Real estate
Aging of Past Due Loans by Class of Loans
Total	221,938,000	218,856,000
Multi-Family | Real estate | Current
Aging of Past Due Loans by Class of Loans
Loan balance	221,938,000	218,856,000
Residential Mortgage
Aging of Past Due Loans by Class of Loans
Total	448,958,000	416,660,000
Residential Mortgage | Real estate
Aging of Past Due Loans by Class of Loans
Total	448,958,000	416,660,000
Residential Mortgage | Real estate | 30-59 Days Past Due
Aging of Past Due Loans by Class of Loans
Loan balance		599,000
Residential Mortgage | Real estate | Past due
Aging of Past Due Loans by Class of Loans
Loan balance		599,000
Residential Mortgage | Real estate | Current
Aging of Past Due Loans by Class of Loans
Loan balance	448,958,000	416,061,000
Consumer and Other
Aging of Past Due Loans by Class of Loans
Total	18,354,000	16,744,000
Consumer and Other | Consumer
Aging of Past Due Loans by Class of Loans
Total	18,354,000	16,744,000
Consumer and Other | Consumer | Current
Aging of Past Due Loans by Class of Loans
Loan balance	$ 18,354,000	$ 16,744,000