Organization and Description of Business and Accounting Policies - Additional Information (Details)		12 Months Ended
	Dec. 22, 2017	Jan. 01, 2021 USD ($) Segment	Jan. 03, 2020 USD ($)	Dec. 28, 2018 USD ($)	Dec. 29, 2018 USD ($)
Organization And Description Of Business And Accounting Policies [Line Items]
Number of operating segments | Segment		1
Revenue, Remaining Performance Obligation, Amount		$ 0
Deferred Revenues		0	$ 0	$ 0
Goodwill		1,786,000	1,786,000
Accumulated deficit		$ (135,891,000)	$ (141,804,000)
U.S. corporate tax rate	35.00%	21.00%	21.00%	21.00%
Percentage of deduction in GILTI		50.00%
Executive Officers and Employees | Restricted Stock
Organization And Description Of Business And Accounting Policies [Line Items]
Option Vesting Term		3 years
Board of Directors
Organization And Description Of Business And Accounting Policies [Line Items]
Option Vesting Term		1 year
Board of Directors | Restricted Stock
Organization And Description Of Business And Accounting Policies [Line Items]
Option Vesting Term		1 year
Cumulative Effect Period of Adoption Adjustment | Topic 842
Organization And Description Of Business And Accounting Policies [Line Items]
Accumulated deficit				$ 113,000
Cumulative Effect Period of Adoption Adjustment | Accounting Standards Update 2018-07
Organization And Description Of Business And Accounting Policies [Line Items]
Accumulated deficit					$ 315,000
Minimum | Restricted Stock
Organization And Description Of Business And Accounting Policies [Line Items]
Requisite Service Period		1 year
Minimum | Executive Officers and Employees
Organization And Description Of Business And Accounting Policies [Line Items]
Option Vesting Term		3 years
Maximum | Restricted Stock
Organization And Description Of Business And Accounting Policies [Line Items]
Requisite Service Period		3 years
Maximum | Executive Officers and Employees
Organization And Description Of Business And Accounting Policies [Line Items]
Option Vesting Term		4 years
Patents And Licenses | Minimum
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life		3 years
Patents And Licenses | Maximum
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life		20 years
Customer Relationships
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life		10 years
Developed technology | Minimum
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life		3 years
Developed technology | Maximum
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life		10 years
Customer Concentration Risk | One Customer | Trade Accounts Receivable
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration risk, percentage		46.00%	43.00%
Customer Concentration Risk | One Customer | Sales Revenue, Net
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration risk, percentage		44.00%	43.00%	37.00%
Vendor Concentration Risk | Consolidated Accounts Payable
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration risk, percentage			11.00%
Vendor Concentration Risk | Consolidated Accounts Payable | Maximum
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration risk, percentage		10.00%
Vendor Concentration Risk | Consolidated Purchases | Maximum
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration risk, percentage		10.00%	10.00%	10.00%