Fair Value Disclosures, Quantitative Information About Level 3 (Details) $ in Thousands		Sep. 30, 2021 USD ($)		Dec. 31, 2020 USD ($)
Installment [Member]
Asset Fair Value [Abstract]
Collateral dependent loans fair value		$ 190		$ 160
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Significant Un-observable Inputs (Level 3) [Member]
Asset Fair Value [Abstract]
Servicing asset fair value		$ 24,208		$ 16,904
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Present Value of Net Servicing Revenue [Member] | Significant Un-observable Inputs (Level 3) [Member] | Float Rate [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		0.0105		0.0043
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Minimum [Member] | Significant Un-observable Inputs (Level 3) [Member] | Cost to Service [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		68		69
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Minimum [Member] | Significant Un-observable Inputs (Level 3) [Member] | Ancillary Income [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		17		20
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Minimum [Member] | Present Value of Net Servicing Revenue [Member] | Significant Un-observable Inputs (Level 3) [Member] | Discount Rate [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		0.1000		0.1000
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Minimum [Member] | Present Value of Net Servicing Revenue [Member] | Significant Un-observable Inputs (Level 3) [Member] | Prepayment Rate [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		0.0702		0.0792
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Maximum [Member] | Significant Un-observable Inputs (Level 3) [Member] | Cost to Service [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		815		289
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Maximum [Member] | Significant Un-observable Inputs (Level 3) [Member] | Ancillary Income [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		30		37
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Maximum [Member] | Present Value of Net Servicing Revenue [Member] | Significant Un-observable Inputs (Level 3) [Member] | Discount Rate [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		0.1300		0.1300
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Maximum [Member] | Present Value of Net Servicing Revenue [Member] | Significant Un-observable Inputs (Level 3) [Member] | Prepayment Rate [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		0.4443		0.6470
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Weighted Average [Member] | Significant Un-observable Inputs (Level 3) [Member] | Cost to Service [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		81		79
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Weighted Average [Member] | Significant Un-observable Inputs (Level 3) [Member] | Ancillary Income [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		21		22
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Weighted Average [Member] | Present Value of Net Servicing Revenue [Member] | Significant Un-observable Inputs (Level 3) [Member] | Discount Rate [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		0.1007		0.1009
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Weighted Average [Member] | Present Value of Net Servicing Revenue [Member] | Significant Un-observable Inputs (Level 3) [Member] | Float Rate [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		0.0105		0.0043
Recurring Basis [Member] | Capitalized Mortgage Loan Servicing Rights [Member] | Weighted Average [Member] | Present Value of Net Servicing Revenue [Member] | Significant Un-observable Inputs (Level 3) [Member] | Prepayment Rate [Member]
Ranges and Weighted Average [Abstract]
Servicing asset measurement input		0.1421		0.2085
Nonrecurring Basis [Member] | Collateral Dependent Loans Commercial [Member] | Significant Un-observable Inputs (Level 3) [Member]
Asset Fair Value [Abstract]
Collateral dependent loans fair value		$ 512		$ 8,054
Nonrecurring Basis [Member] | Collateral Dependent Loans Commercial [Member] | Minimum [Member] | Sales Comparison Approach [Member] | Significant Un-observable Inputs (Level 3) [Member] | Adjustment for Differences Between Comparable Sales [Member]
Ranges and Weighted Average [Abstract]
Impaired loans measurement input		(0.125)		(0.400)
Nonrecurring Basis [Member] | Collateral Dependent Loans Commercial [Member] | Maximum [Member] | Sales Comparison Approach [Member] | Significant Un-observable Inputs (Level 3) [Member] | Adjustment for Differences Between Comparable Sales [Member]
Ranges and Weighted Average [Abstract]
Impaired loans measurement input		0.120		0.750
Nonrecurring Basis [Member] | Collateral Dependent Loans Commercial [Member] | Weighted Average [Member] | Sales Comparison Approach [Member] | Significant Un-observable Inputs (Level 3) [Member] | Adjustment for Differences Between Comparable Sales [Member]
Ranges and Weighted Average [Abstract]
Impaired loans measurement input		(0.016)		0.038
Nonrecurring Basis [Member] | Collateral Dependent Loans Mortgage and Installment [Member] | Significant Un-observable Inputs (Level 3) [Member]
Asset Fair Value [Abstract]
Collateral dependent loans fair value	[1]	$ 1,216		$ 1,020
Nonrecurring Basis [Member] | Collateral Dependent Loans Mortgage and Installment [Member] | Minimum [Member] | Sales Comparison Approach [Member] | Significant Un-observable Inputs (Level 3) [Member] | Adjustment for Differences Between Comparable Sales [Member]
Ranges and Weighted Average [Abstract]
Impaired loans measurement input		(0.242)	[1]	(0.733)
Nonrecurring Basis [Member] | Collateral Dependent Loans Mortgage and Installment [Member] | Maximum [Member] | Sales Comparison Approach [Member] | Significant Un-observable Inputs (Level 3) [Member] | Adjustment for Differences Between Comparable Sales [Member]
Ranges and Weighted Average [Abstract]
Impaired loans measurement input		0.769	[1]	1.046
Nonrecurring Basis [Member] | Collateral Dependent Loans Mortgage and Installment [Member] | Weighted Average [Member] | Sales Comparison Approach [Member] | Significant Un-observable Inputs (Level 3) [Member] | Adjustment for Differences Between Comparable Sales [Member]
Ranges and Weighted Average [Abstract]
Impaired loans measurement input		0.017	[1]	(0.015)
Nonrecurring Basis [Member] | Other Real Estate Mortgage [Member] | Significant Un-observable Inputs (Level 3) [Member]
Asset Fair Value [Abstract]
Other real estate fair value				$ 102
Nonrecurring Basis [Member] | Other Real Estate Mortgage [Member] | Minimum [Member] | Sales Comparison Approach [Member] | Significant Un-observable Inputs (Level 3) [Member] | Adjustment for Differences Between Comparable Sales [Member]
Ranges and Weighted Average [Abstract]
Other real estate measurement input				(0.131)
Nonrecurring Basis [Member] | Other Real Estate Mortgage [Member] | Maximum [Member] | Sales Comparison Approach [Member] | Significant Un-observable Inputs (Level 3) [Member] | Adjustment for Differences Between Comparable Sales [Member]
Ranges and Weighted Average [Abstract]
Other real estate measurement input				0.024
Nonrecurring Basis [Member] | Other Real Estate Mortgage [Member] | Weighted Average [Member] | Sales Comparison Approach [Member] | Significant Un-observable Inputs (Level 3) [Member] | Adjustment for Differences Between Comparable Sales [Member]
Ranges and Weighted Average [Abstract]
Other real estate measurement input				(0.036)

[1] In addition to the valuation techniques and unobservable inputs discussed above, at September 30, 2021 and December 31, 2020 certain collateral dependent installment loans totaling approximately $0.19 million and $0.16 million, respectively are secured by collateral other than real estate.  For the majority of these loans, we apply internal discount rates to industry valuation guides.