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Note 12 - Income Taxes - Income Tax Expense (Details) - USD ($)
 12 Months Ended
Oct. 31, 2023
Oct. 31, 2022
Oct. 31, 2021
U.S. Federal, Current Income Tax Expense (Benefit) $ 105,756 $ 0 $ 0
U.S. Federal, Deferred Income Tax Expense (Benefit) 0 0 0
U.S. Federal, Net Income Tax Expense (Benefit) 105,756 0 0
State, Current Income Tax Expense (Benefit) 39,968 24,693 (19,898)
State, Deferred Income Tax Expense (Benefit) 0 0 0
State, Net Income Tax Expense (Benefit) 39,968 24,693 (19,898)
Total, Current Income Tax Expense (Benefit) 145,724 24,693 (19,898)
Total, Deferred Income Tax Expense (Benefit) 0 0 0
Total, Net Income Tax Expense (Benefit) $ 145,724 $ 24,693 $ (19,898)