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2. Basis of Presentation and Significant Accounting Policies: Liquidity (Details) - USD ($)
3 Months Ended
Mar. 08, 2021
Mar. 05, 2021
Feb. 12, 2021
Jul. 31, 2020
Jan. 31, 2021
Current Assets Exceed Current Liabilities, Excluding Deferred Revenue         $ 338,000
Stockholders' Equity (Rounded)         11,175,000
Net income/(loss), rounded         135,000
Existing Gilbert Note          
Notes Payable, Related Parties, Noncurrent (Rounded)         $ 10,692,000
CARES Act Payroll Support Program          
Proceeds from Loans $ 655,000 $ 1,310,000 $ 875,000 $ 3,003,000