Quarterly report pursuant to Section 13 or 15(d)

Stock-based compensation (Details)

v3.3.0.814
Stock-based compensation (Details)
 9 Months Ended
Sep. 30, 2015
USD ($)
$ / shares
shares
Option activity  
Number of shares, Outstanding ending balance 24,613,880
Aggregate intrinsic value, Outstanding ending balance | $ $ 8,234,000
Employee Stock Option [Member]  
Number of shares available for grant  
Shares available for future grant, beginning balance 32,863,000
Increase in authorized options 50,000,000
Number of shares, Granted (5,220,000)
Number of shares, Cancelled (44,000)
Shares available for future grant, ending balance 77,687,000
Option activity  
Number of shares, Outstanding beginning balance 19,600,000
Number of shares, Exercised (162,000)
Number of shares, Granted 5,220,000
Number of shares, Cancelled 44,000
Number of shares, Outstanding ending balance 24,614,000
Weighted average exercise price, Outstanding beginning balance | $ / shares $ .10
Weighted average exercise price, Exercised | $ / shares .12
Weighted average exercise price, Granted | $ / shares 1.07
Weighted average exercise price, Cancelled | $ / shares .11
Weighted average exercise price, Outstanding ending balance | $ / shares $ 0.31
Aggregate intrinsic value, Outstanding beginning balance | $ $ 10,584,000
Aggregate intrinsic value, Outstanding ending balance | $ $ 8,234,000