Quarterly report pursuant to Section 13 or 15(d)

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

v3.3.0.814
Stock-Based Compensation - Summary of Stock Option Activity (Details)
9 Months Ended
Sep. 30, 2015
$ / shares
shares
Options  
Outstanding at beginning of period | shares 1,383,479
Granted | shares 1,684,759
Exercised | shares 0
Forfeited | shares (997,014)
Expired | shares (360,533)
Outstanding at end of period | shares 1,710,691
Exercisable at end of period | shares 593,090
Vested and expected to vest at end of period | shares 1,665,095
Weighted Average Exercise Price  
Outstanding at beginning of period $ 5.13
Granted 0.90
Exercised 0.00
Forfeited 2.85
Expired 2.88
Outstanding at end of period 2.78
Exercisable at end of period 6.25
Vested and expected to vest at end of period $ 2.83