Commitments and Contingencies (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 30, 2019 |
Mar. 31, 2018 |
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| Commitments and Contingencies Disclosure [Abstract] | ||
| Facility rent expense | $ 451 | |
| Facility rent expense | $ 441 | |
| Fees associated with unreleased product | $ 266 | |
| X | ||||||||||
- Definition The amount of facility and lease expenses. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
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| X | ||||||||||
- Definition The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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