Quarterly report pursuant to Section 13 or 15(d)

Inventory - Summary of Inventory (Details)

v3.7.0.1
Inventory - Summary of Inventory (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 14,159 $ 18,920
Work in process 90 165
Finished equipment and replacement parts 10,949 12,105
Inventory, Gross 25,198 31,190
Less: Reserves for excess and obsolete (421) (294)
Inventory, Net $ 24,777 $ 30,896