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Stock Based Compensation (Details Textual) (USD $)
3 Months Ended
Mar. 31, 2013
Officer and Employee Plans [Member]
 
Shares Held in Employee Stock Option Plan, Allocated 1,420,000
Incentive Stock Option Description The exercise price for incentive stock options must be not less than 100 percent of the fair market value of the common stock on the date of the grant.
Percentage Of Incentive Stock Options Vest On Second Anniversary Of Grant Date 30.00%
Percentage Of Incentive Stock Options Vest On Third Anniversary Of Grant Date 60.00%
Percentage Of Incentive Stock Options Vest On Fourth Anniversary Of Grant Date 100.00%
Percentage Of Nonqualified Stock Options Vest On First Anniversary Of Grant Date 50.00%
Percentage Of Nonqualified Stock Options Vest On Second Anniversary Of Grant Date 100.00%
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 596,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 1.17
Board Of Directors Plan [Member]
 
Shares Held in Employee Stock Option Plan, Allocated 600,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 123,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 1.17
Percentage Of Board Of Directors Plan Vest On First Anniversary Of Grant Date 50.00%
Percentage Of Board Of Directors Plan Vest On Second Anniversary Of Grant Date 100.00%