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Stockholders' Equity - Summary of Stock Option Plan Activity (Details)
3 Months Ended
Mar. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Granted (2,448,500)
Forfeited 66,052
Expired 6,580
Stock Option Plan Activity under 2000 Plan and 2009 Plan
 
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Beginning Balance 2,004,464
Authorized 3,000,000
Granted (2,448,500)
Forfeited 66,052
Expired 6,580
Ending Balance 2,628,596