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SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended
Aug. 28, 2021
Aug. 29, 2020
Aug. 28, 2021
Aug. 29, 2020
Feb. 27, 2021
Accounting Policies [Abstract]          
Deferred Revenue, Additions     $ 88,000    
Operating Lease, Right-of-Use Asset         $ 165,000
Operating Lease, Expense $ 13,000 $ 12,000 $ 37,000 $ 36,000  
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate 3.25%   3.25%    
[custom:RemainderLeaseTerm]     18 months    
[custom:DilutivePotentialCoommonStockInstruments]     $ 0 $ 0