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Securities (Details 2) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended 12 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Schedule of securities with unrealized losses    
Less than 12 Months, Fair Value $ 25,931 $ 5,431
Less than 12 Months, Unrealized Losses (743) (34)
12 Months or Longer, Fair Value    593
12 Months or Longer, Unrealized Losses    (1)
Total fair value 25,931 6,024
Total Unrealized Losses (743) (35)
U.S. Treasury and Government Agencies [Member]
    
Schedule of securities with unrealized losses    
Less than 12 Months, Fair Value 3,995  
Less than 12 Months, Unrealized Losses (117)  
12 Months or Longer, Fair Value     
12 Months or Longer, Unrealized Losses     
Total fair value 3,995  
Total Unrealized Losses (117)  
Mortgage-backed securities [Member]
    
Schedule of securities with unrealized losses    
Less than 12 Months, Fair Value 17,027 5,202
Less than 12 Months, Unrealized Losses (327) (33)
12 Months or Longer, Fair Value    342
12 Months or Longer, Unrealized Losses      
Total fair value 17,027 5,544
Total Unrealized Losses (327) (33)
State and political subdivisions [Member]
    
Schedule of securities with unrealized losses    
Less than 12 Months, Fair Value 4,909 229
Less than 12 Months, Unrealized Losses (299) (1)
12 Months or Longer, Fair Value    251
12 Months or Longer, Unrealized Losses    (1)
Total fair value 4,909 480
Total Unrealized Losses $ (299) $ (2)