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Fair Value Measurement - Quantitative Information about the Inputs and Valuation Methodologies Used for Fair Value Measurements (Details) - Earn Out Liability - USD ($) $ in Thousands | 12 Months Ended
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Dec. 30, 2017 | Dec. 31, 2016
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Liabilities, Fair Value Measurements | $ 572 | $ 694
Level 3 |  |
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Liabilities, Fair Value Measurements | 572 | 694
Level 3 | Discounted Cash Flow |  |
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Liabilities, Fair Value Measurements | $ 572 | $ 694
Valuation Technique, Earn-out liability | Discounted cash flow | Discounted cash flow
Level 3 | Discounted Cash Flow | Weighted Average |  |
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Weighted Average, Projected royalties | $ 1,622 | $ 2,154
Weighted Average, Discount rate | 10.90% | 11.22%
Level 3 | Discounted Cash Flow | Minimum |  |
Quantitative information about the inputs and valuation methodologies used for fair value measurements |  |
Weighted Average, Discount rate | 10.90% | 11.22%
Level 3 | Discounted Cash Flow | 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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- Definition Fair value inputs projected royalties amount. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Description of the inputs and valuation technique(s) used to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity. + References No definition available. + Details
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