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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
Numerator:        
Net income $ 1,432 $ 1,938 $ 2,997 $ 3,201
Preferred stock dividends and accretion of preferred stock discount 262 290 525 580
Net income available to common shareholders $ 1,170 $ 1,648 $ 2,472 $ 2,621
Denominator:        
Weighted average common shares outstanding (basic) 19,584 21,208 20,132 21,208
Effect of stock options/warrants 68 28 54 25
Weighted average common shares outstanding (diluted) 19,652 21,236 20,186 21,233
Earnings per common share:        
Basic $ 0.06 $ 0.08 $ 0.12 $ 0.12
Diluted $ 0.06 $ 0.08 $ 0.12 $ 0.12