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Note 3 - Allowance for Credit Losses for Trade Accounts Receivable - Summary of Changes in the Allowance for Doubtful Accounts for Trade Accounts Receivable (Details) - USD ($)
3 Months Ended
Jan. 31, 2025
Jan. 31, 2024
Balance at beginning of period $ 92,125 $ 71,189
Bad debt recovery (37,240) (11,974)
Balance at end of period $ 54,885 $ 59,215