Fair Value (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Repossessed Assets	$ 1,100,000	$ 605,000
Discount percentage applied to real estate appraised values	15.00%
Discount percentage applied to lot development appraised values	6.00%
Mortgage loan servicing rights	$ 14,656,000	15,792,000	$ 15,264,000	$ 12,210,000
Servicing Asset at Fair Value, Amount	900,000	1,700,000
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance	94,000	182,000	1,568,000	$ 3,189,000
MSRs recorded at cost	13,800,000	14,100,000
Valuation Allowance for Impairment of Recognized Servicing Assets, Additions (Deductions) for Expenses (Recoveries)	(88,000)	(1,386,000)	(1,621,000)
Other real estate owned	983,000	1,354,000
Estimated fair value of other real estate owned (OREO)	938,000
OREO devaluations	(400,000)	11,300,000	32,000
Alternative Investment	45,885,000	44,657,000
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	18,400,000	20,300,000
Alternative Investment, income recognized	371,000	2,400,000	$ 4,500,000
Nonrecurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing Asset at Fair Value, Amount	866,000	1,717,000
Fair Value Measured at Net Asset Value Per Share [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Alternative Investment	$ 27,500,000	$ 24,400,000