| Operating Leases (Details) $ in Thousands | Dec. 28, 2019  USD ($) | 
|---|---|
| Leases [Abstract] | |
| Right-of-use assets | $ 12,310 | 
| Current lease liabilities | 3,155 | 
| Non-current lease liabilities | 9,312 | 
| Total lease liabilities | $ 12,467 | 
| Weighted average remaining lease term (in years): | 5 years 7 months 6 days | 
| Weighted average discount rate: | 4.80% | 
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- References No definition available. 
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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