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

9 Months Ended

Jul. 31, 2015

Notes Tables

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

		Nine Months Ended
		July 31,
		2015				2014
Balance at beginning of period		$	92,988			$	74,073
Bad debt expense (recovery)			(14,203	)			18,655
Losses charged to allowance			(6,820	)			—
Balance at end of period		$	71,965			$	92,728

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

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