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Note 5 - Product Warranties - Changes in Accrual for Product Warranties (Details) - USD ($)
9 Months Ended
Jul. 31, 2024
Jul. 31, 2023
Balance at beginning of period $ 80,000 $ 75,000
Liabilities accrued for warranties issued during the period 77,217 77,089
Warranty claims and costs paid during the period (58,419) (50,700)
Changes in liability for pre-existing warranties during the period (23,798) (21,389)
Balance at end of period $ 75,000 $ 80,000