Fair Value Measurements (Schedule of Fair Value Disclosures Measured On Nonrecurring Basis) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral dependent impaired loans, fair value	$ 422	$ 294
Collateral dependent impaired loans, Total Gains (Losses)	(263)	(269)
Mortgage servicing rights, fair value	7,749	6,478
Mortgage servicing rights, Total Gains (Losses)	(327)	9
Long Lived Assets Nonrecurring Basis, fair value	1,098	914
Long Lived Assets Nonrecurring Basis Gains (Losses)	(362)	(552)
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral dependent impaired loans, fair value	0	0
Mortgage servicing rights, fair value	0	0
Long Lived Assets Nonrecurring Basis, fair value	0	0
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral dependent impaired loans, fair value	0	0
Mortgage servicing rights, fair value	0	0
Long Lived Assets Nonrecurring Basis, fair value	0	0
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Collateral dependent impaired loans, fair value	422	294
Mortgage servicing rights, fair value	7,749	6,478
Long Lived Assets Nonrecurring Basis, fair value	$ 1,098	$ 914