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Related Party Transactions (Details Textual) - Enovation Controls [Member] - USD ($)
$ in Thousands
9 Months Ended
Sep. 28, 2019
Sep. 29, 2018
Dec. 29, 2018
Related Party Transaction [Line Items]      
Due from entities $ 198   $ 296
Due to entities 317   $ 631
Inventory Transactions [Member]      
Related Party Transaction [Line Items]      
Total sales to entities 1,113 $ 2,080  
Total purchases from entities/related party $ 3,857 $ 5,184