Annual report pursuant to Section 13 and 15(d)

Commitments - Table of Rental Expense (Details)

v3.8.0.1
Commitments - Table of Rental Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]      
Minimum rentals $ 343 $ 840 $ 759
Less: Sublease rentals 0 0 8
Rent expense, net $ 343 $ 840 $ 751