Fair Value (Details 3) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair value measurements for financial instruments
Recorded Investment	$ 5,277	$ 4,253
Fair Value, Measurements, Nonrecurring | Residential Real Estate
Fair value measurements for financial instruments
Recorded Investment	139	183
Fair Value, Measurements, Nonrecurring | Consumer
Fair value measurements for financial instruments
Recorded Investment		12
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Commercial
Fair value measurements for financial instruments
Recorded Investment	$ 1,140
Fair Value Measurements Valuation Technique(s) Description	Sales Comparison
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Commercial | Minimum | Measurement Input Comparability Adjustment
Fair value measurements for financial instruments
Adjustment for differences between earning multiplier and comparable sales, Percent	(6.04)
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Commercial | Maximum | Measurement Input Comparability Adjustment
Fair value measurements for financial instruments
Adjustment for differences between earning multiplier and comparable sales, Percent	6.04
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Commercial | Weighted Average | Measurement Input Comparability Adjustment
Fair value measurements for financial instruments
Adjustment for differences between earning multiplier and comparable sales, Percent	0
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Residential Real Estate
Fair value measurements for financial instruments
Recorded Investment	$ 139	$ 183
Fair Value Measurements Valuation Technique(s) Description	Sales comparison	Sales comparison
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Residential Real Estate | Minimum | Measurement Input Comparability Adjustment
Fair value measurements for financial instruments
Adjustment for differences between earning multiplier and comparable sales, Percent	(40.00)	(24.26)
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Residential Real Estate | Maximum | Measurement Input Comparability Adjustment
Fair value measurements for financial instruments
Adjustment for differences between earning multiplier and comparable sales, Percent	47.15	23.74
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Residential Real Estate | Weighted Average | Measurement Input Comparability Adjustment
Fair value measurements for financial instruments
Adjustment for differences between earning multiplier and comparable sales, Percent	(17.77)	14.53
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Consumer
Fair value measurements for financial instruments
Recorded Investment		$ 12
Fair Value Measurements Valuation Technique(s) Description		Sales comparison
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Consumer | Minimum | Measurement Input Comparability Adjustment
Fair value measurements for financial instruments
Adjustment for differences between earning multiplier and comparable sales, Percent		(12.95)
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Consumer | Maximum | Measurement Input Comparability Adjustment
Fair value measurements for financial instruments
Adjustment for differences between earning multiplier and comparable sales, Percent		12.95
Fair Value, Measurements, Nonrecurring | Sales Comparison Valuation | Consumer | Weighted Average | Measurement Input Comparability Adjustment
Fair value measurements for financial instruments
Adjustment for differences between earning multiplier and comparable sales, Percent		0.00