Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details)

v3.8.0.1
Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]    
Unrecognized tax benefits beggining balance $ 1,117 $ 1,117
Additions for tax positions related to the current year 0 0
Additions for tax positions of prior years 0 0
Reductions for tax positions of prior years 0 0
Unrecognized tax benefits ending balance $ 1,117 $ 1,117