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Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Consolidated Balance Sheets [Abstract]    
Held to maturity securities, fair value $ 12,914 $ 8,267
Preferred stock, no par value      
Preferred stock, liquidation preference per share $ 1,000 $ 1,000
Preferred stock, shares authorized 2,000,000 2,000,000
Preferred stock, shares issued 21,000 21,000
Preferred stock, shares outstanding 21,000 21,000
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 30,000,000 30,000,000
Common stock, shares issued 26,397,040 26,396,289
Common stock, shares outstanding 20,921,021 21,207,670
Treasury stock, shares 5,476,019 5,188,619