Fair Value Accounting (Schedule of Assets And Liabilities Measured at Fair Value on Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Assets
Impaired loans	$ 14,343	$ 10,575
Total assets measured at fair value on a nonrecurring basis	14,343	10,575
Fair Value, Inputs, Level 1 [Member]
Assets
Impaired loans
Total assets measured at fair value on a nonrecurring basis
Fair Value, Inputs, Level 2 [Member]
Assets
Impaired loans	9,570	5,634
Total assets measured at fair value on a nonrecurring basis	9,570	5,634
Fair Value, Inputs, Level 3 [Member]
Assets
Impaired loans	4,773	4,941
Total assets measured at fair value on a nonrecurring basis	$ 4,773	$ 4,941