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Property, Plant and Equipment (Tables)
12 Months Ended
Jun. 30, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment [Table Text Block]

Property, plant and equipment consist of the following:

 

    June 30,  
    2012     2011  
Machinery and equipment   $ 1,807,649     $ 1,758,993  
Furniture and fixtures     1,115,039       1,091,637  
Automobiles     22,328       29,124  
Leasehold improvements     443,233       438,245  
Demonstration and consignment inventory     1,290,590       1,101,467  
      4,678,839       4,419,466  
Less: accumulated depreciation and amortization     (3,787,017 )     (3,450,130 )
    $ 891,822     $ 969,336