Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity and Capital Stock - RSU activity (Details)

v3.6.0.2
Shareholders' Equity and Capital Stock - RSU activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
RSU Rollforward      
Number of RSUs Unvested, Beginning Balance 860,095 379,435 691,610
Granted, RSU 715,638 795,592 259,192
Number of RSUs Vested (281,342) (286,223) (527,407)
Number of RSUs Forfeited (20,401) (28,709) (43,960)
Number of RSUs Unvested, Ending Balance 1,273,990 860,095 379,435
Number of RSUs Unvested, Beginning Balance, Weighted average grant date fair value $ 0.82 $ 0.89 $ 0.90
Granted, Weighted average grant date fair value 0.57 0.83 1.20
Vested, Weighted average grant date fair value 0.81 0.91 0.74
Forfeited, Weighted average grant date fair value 0.65 0.85 0.92
Number of RSUs Unvested, Ending Balance, Weighted Average Grant Date Fair Value $ 0.60 $ 0.82 $ 0.89