Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Summary of Stock Options Activity) (Details)

v2.4.0.8
Stock-Based Compensation (Summary of Stock Options Activity) (Details) (USD $)
9 Months Ended
Sep. 30, 2013
Number of Options  
Outstanding at beginning of period 3,412,777
Granted 1,705,725
Exercised (60,000)
Canceled and Forfeited (105,150)
Expired (30,000)
Outstanding at end of period 4,923,352
Exercisable at end of period 2,128,540
Weighted Average Exercise Price  
Outstanding at beginning of period $ 2.01
Granted $ 3.06
Exercised $ 0.84
Canceled and Forfeited $ 2.97
Expired $ 0.19
Outstanding at end of period $ 2.36
Exercisable at end of period $ 1.49
Weighted Average Remaining Contractual Life (years)  
Outstanding at end of period 7 years 3 months 4 days
Exercisable at end of period 5 years 1 month 0 days
Aggregate Intrinsic Value  
Outstanding at end of period $ 2,976,564
Exercisable at end of period $ 2,796,288