Annual report pursuant to Section 13 and 15(d)

Other Assets - (Details Textual)

v3.7.0.1
Other Assets - (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
RIN    
Inventory [Line Items]    
Inventory reduced to lower of cost or market $ 612 $ 3,027