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Securities (Gross Unrealized Losses And Fair Value Of The Bank's Investments) (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months $ 12,680 $ 19,090
Unrealized Losses, Less than 12 months 503 282
Fair Value, More than 12 months 40,075 33,535
Unrealized Losses, More than 12 months 2,465 1,601
Fair Value, Total 52,755 52,625
Unrealized Losses, Total 2,968 1,883
US Treasuries [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, More than 12 months 1,814 1,858
Unrealized Losses, More than 12 months 144 98
Fair Value, Total 1,814 1,858
Unrealized Losses, Total 144 98
US Agency Obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months, Held-to-maturity 2,286 2,367
Unrealized Losses, Less than 12 months, Held-to-maturity 150 70
Fair Value, More than 12 months, Held-to-maturity 1,192 1,243
Unrealized Losses, More than 12 months, Held-to-maturity 80 32
Fair Value, Total, Held-to-maturity 3,478 3,610
Unrealized Losses, Total, Held-to-maturity 230 102
Fair Value, Less than 12 months 9,213 11,465
Unrealized Losses, Less than 12 months 425 215
Fair Value, More than 12 months 14,001 12,379
Unrealized Losses, More than 12 months 1,197 821
Fair Value, Total 23,214 23,844
Unrealized Losses, Total 1,622 1,036
Mortgage-Backed Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months 1,414 2,802
Unrealized Losses, Less than 12 months 36 26
Fair Value, More than 12 months 11,415 9,712
Unrealized Losses, More than 12 months 444 250
Fair Value, Total 12,829 12,514
Unrealized Losses, Total 480 276
Municipals [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months 2,053 4,823
Unrealized Losses, Less than 12 months 42 41
Fair Value, More than 12 months 9,048 5,644
Unrealized Losses, More than 12 months 364 257
Fair Value, Total 11,101 10,467
Unrealized Losses, Total 406 298
Corporates [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months
Unrealized Losses, Less than 12 months
Fair Value, More than 12 months 3,797 3,942
Unrealized Losses, More than 12 months 316 175
Fair Value, Total 3,797 3,942
Unrealized Losses, Total $ 316 $ 175