Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Stock Option Activity) (Details)

v3.7.0.1
Stockholders' Equity (Stock Option Activity) (Details) - Stock Options [Member] - shares
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Outstanding at Beginning of Period 5,757,880 5,043,228
Granted 322,500 1,771,500
Exercised
Forfeit/canceled (760,728) (577,817)
Expired (55,703) (479,031)
Outstanding at End of Period 5,263,949 5,757,880