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Securities (Details 2 ) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value $ 57,822 $ 60,610
Less than 12 Months, Unrealized Loss (398) (485)
12 Months or More, Fair Value 12,186 18,666
12 Months or More, Unrealized Loss (3,403) (3,921)
Total, Fair Value 70,008 79,276
Total, Unrealized Loss (3,801) (4,406)
U.S. Treasury [Member]
    
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value 0 0
Less than 12 Months, Unrealized Loss 0 0
12 Months or More, Fair Value 0 0
12 Months or More, Unrealized Loss 0 0
Total, Fair Value 0 0
Total, Unrealized Loss 0 0
U.S. Government sponsored entities [Member]
    
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value 5,989 7,671
Less than 12 Months, Unrealized Loss (9) (15)
12 Months or More, Fair Value 0 0
12 Months or More, Unrealized Loss 0 0
Total, Fair Value 5,989 7,671
Total, Unrealized Loss (9) (15)
States and political subdivisions [Member]
    
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value 5,046 5,314
Less than 12 Months, Unrealized Loss (53) (92)
12 Months or More, Fair Value 1,591 0
12 Months or More, Unrealized Loss (1) 0
Total, Fair Value 6,637 5,314
Total, Unrealized Loss (54) (92)
Residential mortgage and asset backed [Member]
    
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value 42,816 36,626
Less than 12 Months, Unrealized Loss (276) (162)
12 Months or More, Fair Value 743 9,485
12 Months or More, Unrealized Loss (3) (52)
Total, Fair Value 43,559 46,111
Total, Unrealized Loss (279) (214)
Commercial mortgage and asset backed [Member]
    
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value 0 0
Less than 12 Months, Unrealized Loss 0 0
12 Months or More, Fair Value 0 0
12 Months or More, Unrealized Loss 0 0
Total, Fair Value 0 0
Total, Unrealized Loss 0 0
Corporate notes and bonds [Member]
    
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value 1,949 2,860
Less than 12 Months, Unrealized Loss (51) (139)
12 Months or More, Fair Value 9,492 8,841
12 Months or More, Unrealized Loss (2,959) (3,409)
Total, Fair Value 11,441 11,701
Total, Unrealized Loss (3,010) (3,548)
Pooled trust preferred [Member]
    
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value 0 0
Less than 12 Months, Unrealized Loss 0 0
12 Months or More, Fair Value 360 340
12 Months or More, Unrealized Loss (440) (460)
Total, Fair Value 360 340
Total, Unrealized Loss (440) (460)
Pooled SBA [Member]
    
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value 2,022 8,139
Less than 12 Months, Unrealized Loss (9) (77)
12 Months or More, Fair Value 0 0
12 Months or More, Unrealized Loss 0 0
Total, Fair Value 2,022 8,139
Total, Unrealized Loss (9) (77)
Other Securities [Member]
    
Securities with unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position    
Less than 12 Months, Fair Value 0 0
Less than 12 Months, Unrealized Loss 0 0
12 Months or More, Fair Value 0 0
12 Months or More, Unrealized Loss 0 0
Total, Fair Value 0 0
Total, Unrealized Loss $ 0 $ 0