Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation (Details 2)

v3.8.0.1
Stock-based Compensation (Details 2) - Restricted Stock Units (RSUs) [Member]
shares in Thousands
 3 Months Ended
Mar. 31, 2018
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]  
Unvested - Number of Shares | shares 617
Granted - Number of Shares | shares 35
Vested - Number of Shares | shares (466)
Forfeited - Number of Shares | shares (61)
Unvested - Number of Shares | shares 125
Unvested - Weighted- Average Grant Date Fair Value | $ / shares $ 1.65
Granted - Weighted- Average Grant Date Fair Value | $ / shares 1.73
Vested - Weighted- Average Grant Date Fair Value | $ / shares 1.32
Forfeited - Weighted- Average Grant Date Fair Value | $ / shares 2.85
Unvested - Weighted- Average Grant Date Fair Value | $ / shares $ 2.27