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Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period	$ 117	$ 116	$ 124
Provisions	1,696	1	93
Net Deductions	1,112	0	101
Balance at end of period	$ 701	$ 117	$ 116

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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