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Property and Equipment (Details) (USD $)
9 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Sep. 30, 2011
Property and Equipment      
Property and equipment, Gross $ 1,656,035   $ 1,559,639
Accumulated depreciation (1,470,991)   (1,484,171)
Property and equipment, net 185,044   75,468
Depreciation expense 44,563 91,627  
Machinery and equipment [Member]
     
Property and Equipment      
Property and equipment, Gross 520,034   521,719
Office furniture and equipment [Member]
     
Property and Equipment      
Property and equipment, Gross 833,546   775,662
Leasehold improvements [Member]
     
Property and Equipment      
Property and equipment, Gross $ 302,455   $ 262,258