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2. Basis of Presentation and Significant Accounting Policies: Liquidity (Details) - USD ($)
6 Months Ended
May 27, 2021
Apr. 29, 2021
Apr. 26, 2021
Apr. 16, 2021
Mar. 08, 2021
Mar. 05, 2021
Feb. 12, 2021
Jul. 31, 2020
Apr. 30, 2021
Current Assets Exceed Current Liabilities, Excluding Deferred Revenue                 $ 168,000
Stockholders' Equity (Rounded)                 11,159,000
Net income/(loss), rounded                 85,000
Existing Gilbert Note                  
Notes Payable, Related Parties, Noncurrent (Rounded)                 $ 10,692,000
CARES Act Payroll Support Program                  
Proceeds from Loans $ 655,000 $ 655,000 $ 655,000 $ 1,310,000 $ 655,000 $ 1,310,000 $ 875,000 $ 3,003,000