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Inventories (Tables) - Inventories (Details) (USD $)	Feb. 28, 2013	Feb. 29, 2012
Inventories Tables
Raw materials	$ 1,073,492	$ 1,295,938
Work in process	385,092	544,805
Consignment	9,728	7,127
Finished goods	561,298	905,142
Total	2,029,610	2,753,012
Less: Allowance	200,439	193,884
Net inventories	$ 1,829,171	$ 2,559,128

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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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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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 items to be consumed in the manufacturing or production process. Also includes purchased parts that will be used as components of a finished product.

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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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Gross amount of inventory owned by the entity but in the hands of a customer, typically a reseller.

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