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Restructuring Costs and Other Income - Additional Information (Details)
ft² in Thousands, $ in Thousands
 12 Months Ended
Dec. 29, 2018
USD ($)
Employee
Dec. 30, 2017
USD ($)
ft²
Dec. 31, 2016
USD ($)
Restructuring Cost and Reserve [Line Items]      
Manufacturing facility square footage (in sqft) | ft²   160  
Restructuring provision (reversal) $ 1,717 $ 203  
Loss (gain) on sale of property, plant, and equipment (110) (42) $ 350
Proceeds from sale of property, plant, and equipment $ 195 130 $ 428
United States      
Restructuring Cost and Reserve [Line Items]      
Number of positions eliminated related to restructuring | Employee 4    
Sweden      
Restructuring Cost and Reserve [Line Items]      
Number of positions eliminated related to restructuring | Employee 6    
Loss (gain) on sale of property, plant, and equipment   317  
Proceeds from sale of property, plant, and equipment   368  
Employee severance      
Restructuring Cost and Reserve [Line Items]      
Restructuring provision (reversal) $ (55) 203  
Restructuring Plan 2017      
Restructuring Cost and Reserve [Line Items]      
Restructuring provision (reversal) 1,717    
Restructuring Plan 2017 | Employee severance      
Restructuring Cost and Reserve [Line Items]      
Restructuring provision (reversal) (55) 203  
Restructuring Plan 2017 | Facility-related closing costs      
Restructuring Cost and Reserve [Line Items]      
Expected total costs   $ 1,920  
Restructuring Plan 2017 | Relocation Of Machinery And Equipment And Administrative Offices      
Restructuring Cost and Reserve [Line Items]      
Restructuring provision (reversal) 1,318    
Restructuring Plan 2017 | Employee Retention, Facility Closing, And Other Closure Costs      
Restructuring Cost and Reserve [Line Items]      
Restructuring provision (reversal) $ 454