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Loans And Related Allowances For Loan Losses (Impaired Loans and Related Interest Income by Loan Portfolio Class) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment $ 9,200 $ 1,344
Impaired Loans with Specific Allowance: Related Allowance 2,173 144
Impaired Loans with No Specific Allowance: Recorded Investment 5,974 9,231
Total Impaired Loans: Recorded Investment 15,174 10,575
Unpaid Principal Balance 25,865 21,371
Commercial real estate- non owner-occupied [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 116 121
Impaired Loans with Specific Allowance: Related Allowance 9 13
Impaired Loans with No Specific Allowance: Recorded Investment 33 173
Total Impaired Loans: Recorded Investment 149 294
Unpaid Principal Balance 8,224 8,488
Commercial real estate- all other CRE [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired Loans with No Specific Allowance: Recorded Investment 3,030 4,945
Total Impaired Loans: Recorded Investment 3,030 4,945
Unpaid Principal Balance 3,030 4,945
Acquisition and development- 1-4 family residential construction [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired Loans with No Specific Allowance: Recorded Investment 291 316
Total Impaired Loans: Recorded Investment 291 316
Unpaid Principal Balance 291 316
Acquisition and development- All other A&D [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 8,219 230
Impaired Loans with Specific Allowance: Related Allowance 2,142 25
Impaired Loans with No Specific Allowance: Recorded Investment 60 147
Total Impaired Loans: Recorded Investment 8,279 377
Unpaid Principal Balance 8,340 525
Commercial and industrial [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired Loans with No Specific Allowance: Recorded Investment 30 17
Total Impaired Loans: Recorded Investment 30 17
Unpaid Principal Balance 2,266 2,231
Residential mortgage- term [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 865 993
Impaired Loans with Specific Allowance: Related Allowance 22 106
Impaired Loans with No Specific Allowance: Recorded Investment 1,668 2,910
Total Impaired Loans: Recorded Investment 2,533 3,903
Unpaid Principal Balance 2,724 4,130
Residential mortgage- home equity [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired Loans with No Specific Allowance: Recorded Investment 858 713
Total Impaired Loans: Recorded Investment 858 713
Unpaid Principal Balance 986 726
Consumer [Member]    
Financing Receivable, Impaired [Line Items]    
Impaired Loans with No Specific Allowance: Recorded Investment 4 10
Total Impaired Loans: Recorded Investment 4 10
Unpaid Principal Balance $ 4 $ 10