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

9 Months Ended

Jul. 31, 2019

Notes Tables

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

		Nine Months Ended
		July 31,
		2019				2018
Balance at beginning of period		$	64,242			$	87,446
Bad debt expense			56,483				(29,247	)
Losses charged to allowance			(25,061	)			(4,648	)
Balance at end of period		$	95,664			$	53,551

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

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