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Related Party Transactions (Details Textual) - Enovation Controls [Member] - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017
Related Party Transaction [Line Items] |  |  |
Due from entity | $ 73 | $ 296 |
Due to entity | 361 | 631 |
Inventory Transactions [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Total sales to entity | 1,441 | 2,584 | $ 2,507
Total purchases from entity/related party | $ 4,732 | 6,178 | 11,050
Transition Services Agreement [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Total purchases from entity/related party |  | $ 22 | 1,160
Maximum transition services period for specified services |  | 1 year |
Transition Services Agreement [Member] | Miscellaneous Expense, Net [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Sales and related costs recognized |  | $ 39 | $ 1,757

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