Leases - Supplemental Balance Sheet Information Related to Operating Leases (Details) $ in Thousands	Jan. 03, 2020 USD ($)
Lessee Lease Description [Line Items]
Operating lease ROU assets, gross	$ 12,343
Less accumulated depreciation	5,659
Operating lease ROU assets, net	6,684
Total operating lease liability	$ 6,786
Weighted-average remaining lease term (in years)	2 years 3 months 18 days
Weighted-average discount rate	1.82%
Machinery and Equipment
Lessee Lease Description [Line Items]
Operating lease ROU assets, gross	$ 765
Computer Equipment and Software
Lessee Lease Description [Line Items]
Operating lease ROU assets, gross	462
Real Property
Lessee Lease Description [Line Items]
Operating lease ROU assets, gross	$ 11,116