Inventories (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Raw materials	$ 351,446	$ 273,992
Work-in-process	986,229	664,216
Finished goods	187,400	164,930
Inventory reserve	(80,730)	(57,635)
Inventories Total	$ 1,444,345	$ 1,045,503

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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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

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+ Details