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, 2021	Dec. 31, 2020
Assets
Impaired loans	$ 9,799	$ 11,253
Other real estate owned	366	1,169
Total assets measured at fair value on a nonrecurring basis	10,165	12,422
Fair Value, Inputs, Level 1 [Member]
Assets
Impaired loans
Other real estate owned
Total assets measured at fair value on a nonrecurring basis
Fair Value, Inputs, Level 2 [Member]
Assets
Impaired loans	7,181	8,144
Other real estate owned	366	1,169
Total assets measured at fair value on a nonrecurring basis	7,547	9,313
Fair Value, Inputs, Level 3 [Member]
Assets
Impaired loans	2,618	3,109
Other real estate owned
Total assets measured at fair value on a nonrecurring basis	$ 2,618	$ 3,109