Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation - Schedule of Share-based Compensation, Restricted Stock Units Award Activity (Details)

v3.8.0.1
Stock-based Compensation - Schedule of Share-based Compensation, Restricted Stock Units Award Activity (Details) - Restricted Shares [Member] - shares
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]    
Shares available for grant, beginning 237,403 770,900
RSUs issued 1,500,000 (123,200)
Restricted stock issued (555,500) (445,000)
RSUs forfeited 29,331 34,703
Shares available for grant, beginning 1,211,234 237,403