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Property and Equipment
3 Months Ended
Sep. 30, 2011
Property And Equipment 
Property and Equipment
4.  Property and Equipment
 
 Property and equipment are summarized as follows:
 
         
(unaudited)
       
   
Estimated
   
September 30,
   
June 30,
 
   
Life (Years)
   
2011
   
2011
 
         
 
   
 
 
                   
Manufacturing equipment
    5 - 10     $ 3,241,864     $ 3,226,898  
Computer equipment and software
    3 - 5       271,170       257,451  
Furniture and fixtures
    5       86,166       86,299  
Leasehold improvements
    5 - 7       792,793       787,685  
Construction in progress
            407,959       227,654  
Tooling
    1 - 5       1,289,946       1,135,738  
     Total property and equipment
            6,089,898       5,721,725  
                         
Less accumulated depreciation  and amortization
            3,606,869       3,348,703  
            Total property and equipment, net
          $ 2,483,029     $ 2,373,022