Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Details)

v3.6.0.2
Stock-Based Compensation (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Number of Shares    
Number of Shares, Beginning Balance 2,023,116 1,373,987
Number of Shares, Granted 2,334,171 1,391,531
Number of Shares, Vested (672,411) (614,497)
Number of Shares, Forfeited/Cancelled (796,488) (127,905)
Number of Shares, Exercised
Number of Shares, Ending Balance 2,888,388 2,023,116
Weighted Average Grant Date Fair Value    
Weighted Average Grant Date Fair Value, Beginning Balance $ 3.5 $ 5.67
Weighted Average Grant Date Fair Value, Granted 0.59 2.31
Weighted Average Grant Date Fair Value, Vested 4.16 5.41
Weighted Average Grant Date Fair Value, Forfeited/Cancelled 1.15 4.62
Weighted Average Grant Date Fair Value, Exercised
Weighted Average Grant Date Fair Value, Ending Balance $ 1.64 $ 3.5