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Customer Prepayments	3 Months Ended
Customer Prepayments	Mar. 27, 2020
Customer Prepayments [Abstract]
Customer Prepayments Investment Agreement [Text Block]	Customer Prepayments As of the end of the first quarter of 2020, the Company has received $11.8 million of prepayments from a customer to enable the Company to establish a new manufacturing facility to supply product to the customer. The Company expects to finalize a long-term supply agreement later this year. The prepayments from the customer are expected to be applied when commercial production of the product is sold and delivered to the customer. Accordingly, the $11.8 million of prepayments are classified as Unearned Income in the Consolidated Balance Sheet, and the liability is expected to be settled as commercial shipments are made.