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Note 6 - Long-term Debt and Notes Payable - Long-term Debt (Details) (Parentheticals) - USD ($)	9 Months Ended	12 Months Ended
	Jul. 31, 2021	Oct. 31, 2020
Virginia Real Estate Loan [Member]
Original principal	$ 6,500,000	$ 6,500,000
Monthly installments	$ 31,812	$ 31,812
Debt Instrument, Interest Rate, Stated Percentage	3.95%	3.95%
Final payment	$ 3,318,029	$ 3,318,029
Maturity date	May 01, 2024	May 01, 2024
North Carolina Real Estate Loan [Member]
Original principal	$ 2,240,000	$ 2,240,000
Monthly installments	$ 10,963	$ 10,963
Debt Instrument, Interest Rate, Stated Percentage	3.95%	3.95%
Final payment	$ 711,773	$ 711,773
Maturity date	May 01, 2024	May 01, 2024

X

- Definition

Face (par) amount of debt instrument at time of issuance.

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X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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X

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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- Definition

Amount of the required periodic payments including both interest and principal payments.

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- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

+ References

No definition available.

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