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Securities (Gross Unrealized Losses And Fair Value Of The Bank's Investments) (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months $ 25,953 $ 38,514
Unrealized Losses, Less than 12 months 524 2,575
Fair Value, More than 12 months 20,931
Unrealized Losses, More than 12 months 1,074
Fair Value, Total 46,884 38,514
Unrealized Losses, Total 1,598 2,575
US Treasuries [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months 1,874 1,833
Unrealized Losses, Less than 12 months 81 119
Fair Value, More than 12 months
Unrealized Losses, More than 12 months
Fair Value, Total 1,874 1,833
Unrealized Losses, Total 81 119
US Agency Obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months, Held-to-maturity 1,237 1,193
Unrealized Losses, Less than 12 months, Held-to-maturity 40 91
Fair Value, More than 12 months, Held-to-maturity
Unrealized Losses, More than 12 months, Held-to-maturity
Fair Value, Total, Held-to-maturity 1,237 1,193
Unrealized Losses, Total, Held-to-maturity 40 91
Fair Value, Less than 12 months 4,935 13,109
Unrealized Losses, Less than 12 months 88 1,224
Fair Value, More than 12 months 12,520
Unrealized Losses, More than 12 months 709
Fair Value, Total 17,455 13,109
Unrealized Losses, Total 797 1,224
Mortgage-Backed Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months 10,468 11,331
Unrealized Losses, Less than 12 months 195 353
Fair Value, More than 12 months 2,654
Unrealized Losses, More than 12 months 32
Fair Value, Total 13,122 11,331
Unrealized Losses, Total 227 353
Municipals [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months 5,461 7,170
Unrealized Losses, Less than 12 months 67 534
Fair Value, More than 12 months 3,742
Unrealized Losses, More than 12 months 258
Fair Value, Total 9,203 7,170
Unrealized Losses, Total 325 534
Corporates [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value, Less than 12 months 1,978 3,878
Unrealized Losses, Less than 12 months 53 254
Fair Value, More than 12 months 2,015
Unrealized Losses, More than 12 months 75
Fair Value, Total 3,993 3,878
Unrealized Losses, Total $ 128 $ 254