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Components of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2013	Oct. 31, 2012
Schedule of Inventory [Line Items]
Raw materials and supplies	$ 2,825	$ 2,519
Work in process	2	3
Finished goods	4,558	4,630
Less inventory reserve	(74)	(168)
Totals	$ 7,311	$ 6,984

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Amount before last-in first-out (LIFO) and valuation reserves of merchandise or goods held by the entity that are readily available for sale.

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Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer).

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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The amount of the valuation account as of the balance sheet date which reduces the carrying amount of inventory to net realizable value; takes into consideration such factors as market value, excessive quantities based on expected sales, technological obsolescence, and shrinkage. May also provide for estimated product returns or price concessions pertaining to product cost.

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Gross amount of merchandise or goods which are partially completed, are generally comprised of raw materials, labor and factory overhead costs, and which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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