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Inventories (Details) (USD $)
Jun. 30, 2012
Sep. 30, 2011
Inventories    
Finished goods $ 838,085 $ 505,749
Work in process 95,972 168,622
Raw materials 2,602,496 2,368,245
Inventory gross 3,536,553 3,042,616
Reserve for obsolescence (419,285) (307,096)
Inventory net $ 3,117,268 $ 2,735,520