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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2012
Stock-Based Compensation [Abstract]  
Summary of stock option grants
                                 
   

Grantee

Type

  # of Options
Granted
   

Vesting Period

  Weighted
Average
Exercise Price
    Weighted
Average Grant
Date Fair Value
 

2012

                               
    Director group     51,276     1 year   $ 7.53     $ 3.97  
    Employee group     642,250     3 years     7.61       4.15  

2011

                               
    Director group     65,801     1 year or less   $ 7.23     $ 4.06  
    Director group     16,237     3 years     6.32       3.98  
    Employee group     140,000     2 years     6.09       3.72  
    Employee group     475,064     3 years     7.38       4.33  
Summary of nonvested stock awards granted
                         
   

Grantee

Type

  # of Shares
Granted
   

Vesting Period

  Weighted
Average Grant
Date Fair Value
 
2012                        
    Director group     51,276     1 year   $ 7.53  
    Employee group     471,286     3 years     7.65  
2011                        
    Director group     65,801     1 year or less   $ 7.23  
    Director group     17,237     3 years     6.34  
    Employee group     60,000     2 years     6.09  
    Employee group     455,064     3 years     7.41