Fair Value Measurements (Assets And Liabilities Recorded At Fair Value On A Nonrecurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Residential mortgage loans held for sale	$ 1,998	$ 1,319
Collateral-dependent loans with an ACLL	12,095	7,811
Property held for sale	13,628	14,191
Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	8	4,831
Commercial real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	9,914	1,863
Property held for sale	1,557	1,304
Construction and development [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	1,576	425
Property held for sale	11,595	12,182
Residential real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	597	692
Property held for sale	476	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 loans with an ACLL	0	0
Property held for sale	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 loans with an ACLL	0	0
Fair Value, Inputs, Level 1 [Member] | Commercial real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	0	0
Property held for sale	0	0
Fair Value, Inputs, Level 1 [Member] | Construction and development [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	0	0
Property held for sale	0	0
Fair Value, Inputs, Level 1 [Member] | Residential real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	0	0
Property held for sale	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	1,998	1,319
Collateral-dependent loans with an ACLL	12,095	7,685
Property held for sale	13,007	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 loans with an ACLL	8	4,831
Fair Value, Inputs, Level 2 [Member] | Commercial real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	9,914	1,863
Property held for sale	1,557	1,304
Fair Value, Inputs, Level 2 [Member] | Construction and development [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	1,576	425
Property held for sale	10,974	12,182
Fair Value, Inputs, Level 2 [Member] | Residential real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	597	566
Property held for sale	476	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 loans with an ACLL	0	126
Property held for sale	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 loans with an ACLL	0	0
Fair Value, Inputs, Level 3 [Member] | Commercial real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	0	0
Property held for sale	0	0
Fair Value, Inputs, Level 3 [Member] | Construction and development [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	0	0
Property held for sale	621	0
Fair Value, Inputs, Level 3 [Member] | Residential real estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral-dependent loans with an ACLL	0	126
Property held for sale	$ 0	$ 0