Fair Value Impaired financing receivables (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Impaired [Line Items]
Book Value Of Impaired Loans Carried At Fair Value	$ 5,903,000	$ 1,291,000
Partial Charge-Offs On Impaired Loans carried at Fair Value	1,523,000	240,000
Impaired Financing Receivable, Related Allowance	4,175,000	2,240,000
Impaired loans carried at fair value	5,773,000	1,103,000
Impaired Financing Receivable, loans not held at Fair Value, Recorded Investment	72,438,000	73,211,000
Partial Charge-offs on Impaired Loans carried at Cost	252,000	384,000
impaired Financing Receivable, loans not held at Fair Value, Carrying Amount	69,002,000	71,783,000
Impaired Financing Receivable, Recorded Investment	78,341,000	74,502,000	$ 108,455,000
Partial charge-offs on impaired loans	1,775,000	624,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	3,566,000	1,616,000
Impaired Financing Receivable, Carrying Value	74,775,000	72,886,000
Impaired Financing Receivable, carried at fair value, related expense	(900,000)	500,000	(4,700,000)
expense related to other repossessed assets	0	414,000	$ 435,000
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance	130,000	188,000
Financing Receivable, not collateral dependent [Domain]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Related Allowance	$ 3,436,000	$ 1,428,000