Note 3 - Allowance for Doubtful Accounts for Trade Accounts Receivable (Tables)

6 Months Ended

Apr. 30, 2023

Notes Tables

Summary of Changes in the Allowance for Doubtful Accounts for Trade Accounts Receivable [Table Text Block]

	Six Months Ended
	April 30,
	2023		2022
Balance at beginning of period	$	69,643	$	61,527
Bad debt expense		14,959		18,038
Balance at end of period	$	84,602	$	79,565