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Restructuring Costs and Other Income - Additional Information (Details) ft² in Thousands, $ in Thousands | 12 Months Ended
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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 |  |

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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