Loans - Non-accrual (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	$ 13,423	$ 17,362
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	7,740	10,358
Non-owner occupied commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	798	618
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	0	0
Owner occupied commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	7,026	9,439
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	6,634	8,859
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	1,106	0
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	1,106	0
Non-owner occupied residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	0	441
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	0	440
Commercial, industrial and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	217	2,978
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	0	0
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	0	980
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	0	980
Equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	626	114
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	0	0
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	2,319	2,011
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	0	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	1,331	781
Interest Income Recognized on Non-accrual Loans	0	0
Amortized Cost Basis of Loans > 89 days Past due but still accruing	0	0
Amortized Cost Basis of Non-accrual Loans without Related Allowance	$ 0	$ 79