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

9 Months Ended

Jul. 31, 2021

Notes Tables

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

		Nine Months Ended
		July 31,
		2021				2020
Balance at beginning of period		$	524,617			$	99,562
Bad debt expense			10,828				431,746
Balance at end of period		$	535,445			$	531,308

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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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