Other Expense, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Other operating (income) expense, net:
(Gain) loss on property, plant and equipment disposals	$ (1,047)	$ 170	$ 725
(Gain) loss on currency exchanges	126	(72)	167
Amortization of intangibles	305	306	305
Retirement expenses	64	155	154
BP settlement gain	0	0	841	[1]
Miscellaneous (income) expense	1,010	(118)	(109)
Other operating (income) expense, net	$ 458	$ 441	$ 401

[1] On November 21, 2016, the Company entered into a full and final release agreement with BP Exploration and Production, Inc. and various related entities pursuant to which the Company released any and all claims related to the Deepwater Horizon oil spill which occurred on April 20, 2010. In exchange for this release, the Company received a net amount of $841 from the settlement.