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Earnings Per Common Share (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Income [Abstract]        
Net income $ 781 $ 192 $ 2,438 $ 661
Less preferred stock dividends (127) (127) (254) (254)
Net income applicable to common shareholders 654 65 2,184 407
Net income applicable to common shareholders, diluted $ 654 $ 65 $ 2,184 $ 407
Shares [Abstract]        
Weighted average shares outstanding, basic (in shares) 21,272 22,238 21,273 22,246
Effect of dilutive stock options (in shares) 79 168 84 127
Weighted average shares outstanding, diluted (in shares) 21,351 22,406 21,357 22,373
Per Share Amount [Abstract]        
Net income applicable to common shareholders, basic (in dollars per share) $ 0.03 $ 0 $ 0.10 $ 0.02
Net income applicable to common shareholders, diluted (in dollars per share) $ 0.03 $ 0 $ 0.10 $ 0.02