Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details Textual)

Related Party Transactions (Details Textual) - Enovation Controls [Member]
$ in Thousands
9 Months Ended
Sep. 30, 2017
USD ($)
Inventory Transactions [Member]  
Related Party Transaction [Line Items]  
Number of officers purchasing and selling inventory | Officer 1
Total sales to entity $ 1,869
Total purchases from entity/related party 8,973
Due from entity/related party 427
Due to entity/related party 466
Transition Services Agreement [Member]  
Related Party Transaction [Line Items]  
Total purchases from entity/related party 1,122
Due from entity/related party 98
Due to entity/related party $ 99
Maximum transition services period for specified services 1 year
Transition Services Agreement [Member] | Miscellaneous Expense, Net [Member]  
Related Party Transaction [Line Items]  
Sales $ 1,606
Cost of sales $ 1,606