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Note 7 - Inventories (Details) - Components of Inventory (USD $)
In Thousands, unless otherwise specified
Nov. 30, 2013
Aug. 31, 2013
Components of Inventory [Abstract]    
Raw materials $ 14,137 $ 16,673
Work in process 3,475 2,366
Finished goods 48,426 55,312
Total inventories $ 66,038 $ 74,351 [1]
[1] Derived from audited financial statements