Leases and Commitments - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Other Commitments [Line Items]
Operating lease right-of-use assets	$ 5,600	$ 5,200
Lease liabilities	$ 5,641	$ 5,300
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Accrued Liabilities and Other Liabilities	Accrued Liabilities and Other Liabilities
Reserve for commitments	$ 500	$ 400
Increase (Decrease) in Operating Lease, Right-of-Use Asset	(500)
Increase (Decrease) in Operating Lease Liability	(500)
Commitments to Extend Credit
Other Commitments [Line Items]
Reserve for commitments	514,800	399,800
Commitments expire within one year	177,700	170,100
Standby Letters of Credit
Other Commitments [Line Items]
Reserve for commitments	$ 5,600	$ 4,300
Minimum
Other Commitments [Line Items]
Operating lease, remaining contract term	1 year
Operating Lease renewal term	1 year
Maximum
Other Commitments [Line Items]
Operating lease, remaining contract term	10 years
Operating Lease renewal term	5 years