Quarterly report pursuant to Section 13 or 15(d)

5. STOCKHOLDERS' EQUITY (DEFICIT) (Details 1)

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5. STOCKHOLDERS' EQUITY (DEFICIT) (Details 1)
9 Months Ended
Sep. 30, 2017
$ / shares
shares
Shares  
Outstanding at beginning of period | shares 1,535,187
Forfeited | shares (87,324)
Expired | shares (13,727)
Granted | shares 1,942,595
Exercised | shares (93,939)
Outstanding at end of period and expected to vest | shares 3,282,792
Options exercisable | shares 1,275,001
Weighted Average Exercise Price  
Outstanding at beginning of period | $ / shares $ 7.90
Forfeited | $ / shares 8.03
Expired | $ / shares 8.60
Granted | $ / shares 3.76
Exercised | $ / shares 2.68
Outstanding at end of period and expected to vest | $ / shares 5.59
Options exercisable | $ / shares $ 7.88