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Schedule of Long-lived Assets by Geographic Areas (Details) - USD ($) $ in Thousands | Dec. 26, 2020 | Dec. 28, 2019
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Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total Long-lived Assets | $ 3,407 | $ 4,227
UNITED STATES |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total Long-lived Assets | 3,028 | 3,647
UNITED KINGDOM |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total Long-lived Assets | 329 | 442
CHINA |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total Long-lived Assets | 11 | 37
JAPAN |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Total Long-lived Assets | $ 39 | $ 101

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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