Investments (Amortized Cost And Fair Values Of Investment Securities) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Schedule of Investments [Line Items]    
Amortized Cost $ 249,050 $ 267,161
Gross Unrealized Gains 5,780 5,218
Gross Unrealized Losses 27,586 27,356
Available-for-sale Securities, Total 227,244 245,023
OTTI in AOCI 17,769 17,726
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment 4,040 0
US government agencies [Member]
   
Schedule of Investments [Line Items]    
Amortized Cost 25,515 25,490
Gross Unrealized Gains 69 107
Gross Unrealized Losses 87 17
Available-for-sale Securities, Total 25,497 25,580
OTTI in AOCI 0 0
Residential mortgage-backed agencies [Member]
   
Schedule of Investments [Line Items]    
Amortized Cost 84,715 94,332
Gross Unrealized Gains 1,523 1,494
Gross Unrealized Losses 154 135
Available-for-sale Securities, Total 86,084 95,691
OTTI in AOCI 0 0
Commercial mortgage-backed agencies [Member]
   
Schedule of Investments [Line Items]    
Amortized Cost 48,343 44,850
Gross Unrealized Gains 1,011 217
Gross Unrealized Losses 51 135
Available-for-sale Securities, Total 49,303 44,932
OTTI in AOCI 0 0
Collateralized mortgage obligations [Member]
   
Schedule of Investments [Line Items]    
Amortized Cost 643 680
Gross Unrealized Gains 0 0
Gross Unrealized Losses 42 123
Available-for-sale Securities, Total 601 557
OTTI in AOCI 0 0
Obligations of states and political subdivisions [Member]
   
Schedule of Investments [Line Items]    
Amortized Cost 53,253 65,424
Gross Unrealized Gains 3,177 3,400
Gross Unrealized Losses 10 8
Available-for-sale Securities, Total 56,420 68,816
OTTI in AOCI 0 0
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment 4,040  
Held-to-maturity ross Unrealized Gains 0  
Held-to-maturity Gross Unrealized Losses 0  
Held-to-maturity Securities, Fair Value 4,040  
Held-to-maturity OTTI in AOCI 0  
Collateralized debt obligations [Member]
   
Schedule of Investments [Line Items]    
Amortized Cost 36,581 36,385
Gross Unrealized Gains 0 0
Gross Unrealized Losses 27,242 26,938
Available-for-sale Securities, Total 9,339 9,447
OTTI in AOCI $ 17,769 $ 17,726