Loans And Leases (Recorded Investment In Nonaccrual Loans By Class Of Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans past due over 90 days still on accrual
Total nonaccrual and nonperforming loans	166	190
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual and nonperforming loans	166	190
Single-Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual and nonperforming loans	117	421
Originated For Portfolio [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual and nonperforming loans		12
Purchased For Portfolio [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual and nonperforming loans	44	72
Nonaccrual [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual and nonperforming loans	327	695
Nonaccrual And Nonperforming [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual and nonperforming loans	$ 327	$ 695