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

3 Months Ended

Jan. 31, 2021

Notes Tables

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

		Three Months Ended
		January 31,
		2021				2020
Balance at beginning of period		$	524,617			$	99,562
Bad debt recovery			(7,524	)			(14,838	)
Balance at end of period		$	517,093			$	84,724

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- Definition

Summary Of Changes In The Allowance For Doubtful Accounts For Trade Accounts Receivable [Table Text Block]

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