Fair Value (Details 3) - Fair Value, Measurements, Nonrecurring $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Commercial
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Recorded Investment		$ 1,770
Residential Real Estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Recorded Investment	$ 82
Recorded Investment		82
Consumer
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Recorded Investment		$ 36
Sales Comparison Valuation | Commercial
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Recorded Investment	$ 2,954
Fair Value Measurements Valuation Technique(s) Description	Sales Comparison	Sales comparison
Recorded Investment		$ 1,770
Sales Comparison Valuation | Commercial | Minimum | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Adjustment for differences between earning multiplier and comparable sales, Percent	(14.66)	(24.01)
Sales Comparison Valuation | Commercial | Maximum | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Adjustment for differences between earning multiplier and comparable sales, Percent	8.99	17.93
Sales Comparison Valuation | Commercial | Weighted Average | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Adjustment for differences between earning multiplier and comparable sales, Percent	0	(0.48)
Sales Comparison Valuation | Residential Real Estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Recorded Investment	$ 82
Fair Value Measurements Valuation Technique(s) Description	Sales comparison	Sales comparison
Recorded Investment		$ 82
Sales Comparison Valuation | Residential Real Estate | Minimum | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Adjustment for differences between earning multiplier and comparable sales, Percent	(3.84)	(40.00)
Sales Comparison Valuation | Residential Real Estate | Maximum | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Adjustment for differences between earning multiplier and comparable sales, Percent	3.22	47.15
Sales Comparison Valuation | Residential Real Estate | Weighted Average | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Adjustment for differences between earning multiplier and comparable sales, Percent	(0.12)	(17.77)
Sales Comparison Valuation | Consumer
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Measurements Valuation Technique(s) Description		Sales comparison
Recorded Investment		$ 36
Sales Comparison Valuation | Consumer | Minimum | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Adjustment for differences between earning multiplier and comparable sales, Percent		(23.60)
Sales Comparison Valuation | Consumer | Maximum | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Adjustment for differences between earning multiplier and comparable sales, Percent		23.60
Sales Comparison Valuation | Consumer | Weighted Average | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Adjustment for differences between earning multiplier and comparable sales, Percent		0.00