Leases - Supplemental Balance Sheet Information Related to Finance Leases (Details) - USD ($) $ in Thousands	Oct. 01, 2021	Jan. 01, 2021
Lessee Lease Description [Line Items]
Finance lease right-of-use assets, gross	$ 593	$ 1,376
Less accumulated depreciation	(548)	(780)
Finance lease right-of-use assets, net	45	596
Total finance lease liability	$ 71	$ 398
Weighted-average remaining lease term (in years)	1 year 4 months 24 days	10 months 24 days
Weighted-average discount rate	1.65%	3.46%
Machinery and Equipment
Lessee Lease Description [Line Items]
Finance lease right-of-use assets, gross	$ 36	$ 570
Computer Equipment and Software
Lessee Lease Description [Line Items]
Finance lease right-of-use assets, gross	$ 557	$ 806