Fair Value (Quantitative Information About Significant Unobservable Inputs for Assets Measured at Fair Value on a Nonrecurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	$ 8,029		$ 17,870
Mortgage servicing rights	1,256	$ 196	87
Other real estate owned	61		921
Non-recurring | Significant Unobservable Inputs (Level 3)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	1,678		526
Mortgage servicing rights	1,256		87
Other real estate owned	$ 61		$ 921
Other real estate owned, measurement input	54.81%
Minimum | Non-recurring | Significant Unobservable Inputs (Level 3)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, measurement input	10.00%		10.00%
Other real estate owned, measurement input			18.00%
Maximum | Non-recurring | Significant Unobservable Inputs (Level 3)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, measurement input	80.00%		50.00%
Other real estate owned, measurement input			36.00%
Prepayment speed | Non-recurring | Significant Unobservable Inputs (Level 3)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, prepayment speed	13.28%		13.42%
Discount rate | Non-recurring | Significant Unobservable Inputs (Level 3)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights, prepayment speed	7.75%		8.50%