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SCHEDULE OF LONG-LIVED ASSETS BY GEOGRAPHIC AREAS (Details) - USD ($)
$ in Thousands
Mar. 27, 2021
Dec. 26, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Long-lived Assets $ 3,184 $ 3,407
UNITED STATES    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Long-lived Assets 2,870 3,028
UNITED KINGDOM    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Long-lived Assets 285 329
CHINA    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Long-lived Assets 6 11
JAPAN    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Total Long-lived Assets $ 23 $ 39