Securities (Details 2) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Securities in a continuous unrealized loss position    
Gross unrealized losses, less than 12 months $ 11 $ 135
Fair value, less than 12 months 1,179 26,165
Gross unrealized losses, 12 months or more 52 84
Fair value, 12 months or more 1,002 663
Gross unrealized losses, Total 63 219
Fair value, Total 2,181 26,828
Obligations of U.S. Government corporations and agencies [Member]
   
Securities in a continuous unrealized loss position    
Gross unrealized losses, less than 12 months   23
Fair value, less than 12 months   6,974
Gross unrealized losses, 12 months or more   0
Fair value, 12 months or more   0
Gross unrealized losses, Total   23
Fair value, Total   6,974
Mortgage-backed securities in government sponsored entities [Member]
   
Securities in a continuous unrealized loss position    
Gross unrealized losses, less than 12 months 1 63
Fair value, less than 12 months 394 16,794
Gross unrealized losses, 12 months or more 0 1
Fair value, 12 months or more 0 192
Gross unrealized losses, Total 1 64
Fair value, Total 394 16,986
Obligations of states and political subdivisions [Member]
   
Securities in a continuous unrealized loss position    
Gross unrealized losses, less than 12 months 6  
Fair value, less than 12 months 322  
Gross unrealized losses, 12 months or more 0  
Fair value, 12 months or more 0  
Gross unrealized losses, Total 6  
Fair value, Total 322  
Corporate bonds [Member]
   
Securities in a continuous unrealized loss position    
Gross unrealized losses, less than 12 months 4 49
Fair value, less than 12 months 463 2,397
Gross unrealized losses, 12 months or more 43 72
Fair value, 12 months or more 957 428
Gross unrealized losses, Total 47 121
Fair value, Total 1,420 2,825
Total debt securities [Member]
   
Securities in a continuous unrealized loss position    
Gross unrealized losses, less than 12 months 11 135
Fair value, less than 12 months 1,179 26,165
Gross unrealized losses, 12 months or more 43 73
Fair value, 12 months or more 957 620
Gross unrealized losses, Total 54 208
Fair value, Total 2,136 26,785
Equity securities in financial institutions [Member]
   
Securities in a continuous unrealized loss position    
Gross unrealized losses, less than 12 months 0 0
Fair value, less than 12 months 0 0
Gross unrealized losses, 12 months or more 9 11
Fair value, 12 months or more 45 43
Gross unrealized losses, Total 9 11
Fair value, Total $ 45 $ 43