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Note 3 (Detail) - Schedule of Inventory (USD $)
Aug. 31, 2012
Feb. 29, 2012
Inventories net–noncurrent $ 515,900 $ 548,000
Inventories net–current 10,981,100 9,854,000
Current [Member]
   
Book inventory 11,006,100 9,879,000
Inventory valuation allowance (25,000) (25,000)
Noncurrent [Member]
   
Book inventory 865,900 888,000
Inventory valuation allowance $ (350,000) $ (340,000)