Fair Value Measurements (Assets And Liabilities Recorded At Fair Value On A Nonrecurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans held for sale	$ 2,538	$ 1,319
Collateral-dependent impaired loans	8,407	7,811
Foreclosed properties	15,674	14,191
Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	8	4,831
Commercial Real Estate Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	7,954	1,863
Foreclosed properties	1,125	1,304
Construction And Development Financial Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	355	425
Foreclosed properties	14,049	12,182
Residential Real Estate Financial Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	90	692
Foreclosed properties	500	705
Fair Value Inputs Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans held for sale	0	0
Collateral-dependent impaired loans	0	0
Foreclosed properties	0	0
Fair Value Inputs Level 1 [Member] | Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Fair Value Inputs Level 1 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed properties	0	0
Fair Value Inputs Level 1 [Member] | Construction And Development Financial Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed properties	0	0
Fair Value Inputs Level 1 [Member] | Residential Real Estate Financial Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed properties	0	0
Fair Value Inputs Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans held for sale	2,538	1,319
Collateral-dependent impaired loans	8,407	7,685
Foreclosed properties	15,053	14,191
Fair Value Inputs Level 2 [Member] | Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	8	4,831
Fair Value Inputs Level 2 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	7,954	1,863
Foreclosed properties	1,125	1,304
Fair Value Inputs Level 2 [Member] | Construction And Development Financial Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	355	425
Foreclosed properties	13,428	12,182
Fair Value Inputs Level 2 [Member] | Residential Real Estate Financial Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	90	566
Foreclosed properties	500	705
Fair Value Inputs Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans held for sale	0	0
Collateral-dependent impaired loans	0	126
Foreclosed properties	621	0
Fair Value Inputs Level 3 [Member] | Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Fair Value Inputs Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed properties	0	0
Fair Value Inputs Level 3 [Member] | Construction And Development Financial Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	0
Foreclosed properties	621	0
Fair Value Inputs Level 3 [Member] | Residential Real Estate Financial Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent impaired loans	0	126
Foreclosed properties	$ 0	$ 0