Schedule of Revenue by End Market (Details)	3 Months Ended
	Mar. 29, 2019	Mar. 30, 2018
Segment Reporting Information [Line Items]
Total revenue by end market	100.00%	100.00%
Advanced Industrial
Segment Reporting Information [Line Items]
Total revenue by end market	50.00%	50.00%
Medical
Segment Reporting Information [Line Items]
Total revenue by end market	50.00%	50.00%