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Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period	$ 701	$ 117	$ 116
Provisions	1,647	1,696	1
Net Deductions	848	1,112	0
Balance at end of period	$ 1,500	$ 701	$ 117

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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