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Note 2 - Allowance for Doubtful Accounts for Trade Accounts Receivable

12 Months Ended

Oct. 31, 2022

Notes to Financial Statements

Allowance for Doubtful Accounts for Trade Accounts Receivable Disclosure [Text Block]

(2)

Allowance for Doubtful Accounts for Trade Accounts Receivable

A summary of changes in the allowance for doubtful accounts for trade accounts receivable for the years ended October 31, 2022, 2021 and 2020 follows:

		Years ended October 31,
		2022				2021				2020
Balance at beginning of year		$	61,527			$	524,617			$	99,562
Bad debt expense			8,116				10,750				425,055
Losses charged to allowance			—				(473,840	)			—
Balance at end of year		$	69,643			$	61,527			$	524,617