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Fair Value Measurements - Quantitative Information about the Inputs and Valuation Methodologies Used for Fair Value Measurements (Details) - Fair Value Measurements Recurring - Earn Out Liability $ in Thousands | Jun. 29, 2019 USD ($) | Dec. 29, 2018 USD ($)
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Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Liabilities, Fair Value Measurements | $ 262 | $ 334
Level 3 |  |
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Liabilities, Fair Value Measurements | $ 262 | $ 334
Valuation Technique, Earn-out liability | us-gaap:ValuationTechniqueDiscountedCashFlowMember | us-gaap:ValuationTechniqueDiscountedCashFlowMember
Level 3 | Discounted Cash Flow | Weighted Average |  |
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Weighted Average, Projected royalties | $ 999 | $ 1,245
Discount Rate | Level 3 | Weighted Average |  |
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Weighted Average, Discount rate | 10.29 | 10.33
Discount Rate | Level 3 | Minimum |  |
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Weighted Average, Discount rate | 10.20 | 10.20
Discount Rate | Level 3 | Maximum |  |
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Weighted Average, Discount rate | 27.00 | 27.00

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