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Note 9 - Loan and Credit Agreements - Summary of Term Debt (Details) (Parentheticals) - USD ($) | 12 Months Ended
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Nov. 30, 2020 | Nov. 30, 2019
Term Loan Due October 2037 [Member] |  |
Debt Instrument, Periodic Payment, Total | $ 17,271 | $ 17,271
Debt Instrument, Interest Rate, Stated Percentage | 5.00% | 5.00%
SBA Loan One [Member] |  |
Debt Instrument, Periodic Payment, Total | $ 731 |
Debt Instrument, Interest Rate, Stated Percentage | 3.75% |
SBA Loan Two [Member] |  |
Debt Instrument, Periodic Payment, Total | $ 731 |
Debt Instrument, Interest Rate, Stated Percentage | 3.75% |
SBA Loan Three [Member] |  |
Debt Instrument, Periodic Payment, Total | $ 731 |
Debt Instrument, Interest Rate, Stated Percentage | 3.75% |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payments including both interest and principal payments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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