Leases - Supplemental Balance Sheet Information Related to Operating Leases (Details) $ in Thousands	Mar. 29, 2019 USD ($)
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, gross	$ 10,566
Less accumulated depreciation	3,937
Operating lease right-of-use assets, net	6,629
Total operating lease liability	$ 6,765
Weighted-average remaining lease term (in years)	2 years 6 months
Weighted-average discount rate	1.83%
Machinery and Equipment
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, gross	$ 734
Furniture and Fixtures
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, gross	462
Real Property
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, gross	$ 9,370