Employee Benefit Plans - Additional Information (Details)	12 Months Ended
	Jan. 03, 2020 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Description Related To Benefit Based Under Point System	Each point earned is worth a fixed monetary value, 1,000 Yen per point, regardless of the level grade or zone of the employee.  Gross benefits are calculated based on the cumulative number of points earned over the service period multiplied by 1,000 Yen.  The mandatory retirement age limit is 60 years old
Defined Contribution Plan Employees Eligible Payroll	$ 19,000
Defined Contribution Plan Employees Catch-up Contribution	$ 6,000
Employers Contribution Percentage	80.00%
Employee’s Contribution up to First Percentage of Employee’s Compensation	6.00%
Swiss Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Future Estimated Cash Contribution	$ 631,000
Swiss Plan | Pension Costs
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year	318,000
Japan Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year	$ 1,000