Schedule of Share-based Compensation, Stock Options, Activity (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 1 $ 7,975,125
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 2 1.38
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 3 0.70
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 4 5,613,510
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 5 (652,500)
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 6 2.41
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 7 0.71
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 8 (460,975)
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 9 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 10 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 11 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 12 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 13 2,917,000
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 14 0.31
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 15 0.16
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 16 453,774
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 17 10,239,625
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 18 0.91
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 19 0.55
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 20 5,606,309
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 21 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 22 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 23 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 24 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 25 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 26 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 27 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 28 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 29 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 30 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 31 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 32 0
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 33 10,239,625
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 34 0.91
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 35 0.55
Stock Based Compensation Schedule Of Share-based Compensation, Stock Options, Activity 36 $ 5,606,309