Derivative Financial Instruments and Fair Value Measurements (Details) - Recurring basis [Member] - USD ($) $ in Thousands	Jun. 27, 2020	Dec. 28, 2019
Commodity futures and forward contracts [Member]
Derivative [Line Items]
Unrealized short-term derivative asset	$ 134	$ 284
Level 1 [Member] | Commodity futures and forward contracts [Member]
Derivative [Line Items]
Unrealized short-term derivative asset	134	284
Level 2 [Member] | Commodity futures and forward contracts [Member]
Derivative [Line Items]
Unrealized short-term derivative asset	0	0
Level 3 [Member] | Commodity futures and forward contracts [Member]
Derivative [Line Items]
Unrealized short-term derivative asset	0	0
Not designated as hedging instruments [Member] | Forward foreign currency contracts [Member]
Derivative [Line Items]
Derivative liability, notional amount	(70)	(73)
Not designated as hedging instruments [Member] | Level 1 [Member] | Forward foreign currency contracts [Member]
Derivative [Line Items]
Derivative liability, notional amount	0	0
Not designated as hedging instruments [Member] | Level 2 [Member] | Forward foreign currency contracts [Member]
Derivative [Line Items]
Derivative liability, notional amount	(70)	(73)
Not designated as hedging instruments [Member] | Level 3 [Member] | Forward foreign currency contracts [Member]
Derivative [Line Items]
Derivative liability, notional amount	$ 0	$ 0