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

9 Months Ended

Jul. 31, 2016

Notes Tables

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

		Nine Months Ended
		July 31,
		2016				2015
Balance at beginning of period		$	63,011			$	92,988
Bad debt expense (recovery)			23,074				(14,203	)
Losses charged to allowance			-				(6,820	)
Balance at end of period		$	86,085			$	71,965

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

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