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Securities (Gross Unrealized Losses And Fair Value Of The Bank's Investments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months $ 19,090 $ 38,514
Unrealized Losses, Less than 12 months 282 2,575
Fair Value, More than 12 months 33,535
Unrealized Losses, More than 12 months 1,601
Fair Value, Total 52,625 38,514
Unrealized Losses, Total 1,883 2,575
US Treasuries [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months   1,833
Unrealized Losses, Less than 12 months   119
Fair Value, More than 12 months 1,858
Unrealized Losses, More than 12 months 98
Fair Value, Total 1,858 1,833
Unrealized Losses, Total 98 119
US Agency Obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months, Held-to-maturity 2,367 1,193
Unrealized Losses, Less than 12 months, Held-to-maturity 70 91
Fair Value, More than 12 months, Held-to-maturity 1,243
Unrealized Losses, More than 12 months, Held-to-maturity 32
Fair Value, Total, Held-to-maturity 3,610 1,193
Unrealized Losses, Total, Held-to-maturity 102 91
Fair Value, Less than 12 months 11,465 13,109
Unrealized Losses, Less than 12 months 215 1,224
Fair Value, More than 12 months 12,379
Unrealized Losses, More than 12 months 821
Fair Value, Total 23,844 13,109
Unrealized Losses, Total 1,036 1,224
Mortgage-Backed Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months 2,802 11,331
Unrealized Losses, Less than 12 months 26 353
Fair Value, More than 12 months 9,712
Unrealized Losses, More than 12 months 250
Fair Value, Total 12,514 11,331
Unrealized Losses, Total 276 353
Municipals [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months 4,823 7,170
Unrealized Losses, Less than 12 months 41 534
Fair Value, More than 12 months 5,644
Unrealized Losses, More than 12 months 257
Fair Value, Total 10,467 7,170
Unrealized Losses, Total 298 534
Corporates [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months   3,878
Unrealized Losses, Less than 12 months   254
Fair Value, More than 12 months 3,942
Unrealized Losses, More than 12 months 175
Fair Value, Total 3,942 3,878
Unrealized Losses, Total $ 175 $ 254