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Components of Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2015
Oct. 31, 2014
Inventory [Line Items]    
Raw materials and supplies $ 2,410us-gaap_InventoryRawMaterialsAndSupplies $ 1,784us-gaap_InventoryRawMaterialsAndSupplies
Work in process 22us-gaap_InventoryWorkInProcess 12us-gaap_InventoryWorkInProcess
Finished goods 3,532us-gaap_InventoryFinishedGoods 3,463us-gaap_InventoryFinishedGoods
Totals $ 5,964us-gaap_InventoryNet $ 5,259us-gaap_InventoryNet