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Share-Based Compensation (Details 3) (USD $)
6 Months Ended
Jun. 30, 2012
Summary of the status of nonvested stock options  
Nonvested Shares, beginning balance 833
Weighted Average Exercise Price per Share, beginning balance $ 5.34
Nonvested Shares, Granted 35,000
Weighted Average Exercise Price per Share, Granted $ 5.39
Nonvested Shares, vested (833)
Weighted Average Exercise Price per Share, vested $ 5.34
Nonvested shares, Forfeited or expired   
Weighted Average Exercise Price per Share, forfeited or expired   
Nonvested Shares, ending balance 35,000
Weighted Average Exercise Price per Share, Ending balance $ 5.39