Note 5 - Product Warranties (Tables)

9 Months Ended

Jul. 31, 2022

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

	Nine Months Ended
	July 31,
	2022			2021
Balance at beginning of period	$	75,000		$	85,000
Liabilities accrued for warranties issued during the period		98,392			86,287
Warranty claims and costs paid during the period		(47,606	)		(50,714	)
Changes in liability for pre-existing warranties during the period		(50,786	)		(25,573	)
Balance at end of period	$	75,000		$	95,000