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Stock-Based Compensation Plan (Tables)
6 Months Ended
Jun. 30, 2012
Stock-Based Compensation Plan [Abstract]  
Restricted Stock Activity
Six Months Ended June 30,
2012 2011
Shares Weighted
Average
Grant Date
Fair Value
Shares Weighted
Average
Grant Date
Fair Value
Nonvested, beginning of period 13,700 $ 16.11 12,772 $ 16.89
Granted 14,500 17.87 12,300 16.76
Vested (7,363 ) 16.10 (5,691 ) 17.26
Forfeited (737 ) 16.25 (2,081 ) 18.38
Nonvested, end of period 20,100 $ 17.37 17,300 $ 16.50