Loans - Non-accrual (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	$ 14,853	$ 25,963
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	8,293	20,423
Non-owner occupied commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	745	769
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	7,018	6,849
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	6,703	6,630
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	1,167	1,096
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	1,073	1,095
Non-owner occupied residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	517	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	517	0
Commercial, industrial and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	323	401
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	12,698
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	12,698
Equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual	1,147	518
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	2,732	2,400
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	1,204	1,232
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