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Supplemental Balance Sheet Disclosures (Details 2) (USD $)
3 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Sep. 30, 2012
Property and equipment      
Property and equipment, gross $ 17,298,397   $ 17,255,166
Less: Accumulated depreciation and amortization (10,146,747)   (10,040,788)
Property and equipment, net 7,151,650   7,214,378
Depreciation 106,000 125,000  
Other assets      
Intangible assets, net 145,400   158,600
Accumulated amortization of intangible assets 454,837   441,637
Total intangible amortization expense 13,000 42,000  
Computer equipment
     
Property and equipment      
Property and equipment, gross 2,119,481   2,090,556
Corporate airplane
     
Property and equipment      
Property and equipment, gross 3,082,186   3,082,186
Furniture and office equipment
     
Property and equipment      
Property and equipment, gross 1,076,849   1,076,849
Manufacturing facility
     
Property and equipment      
Property and equipment, gross 5,616,422   5,605,616
Equipment
     
Property and equipment      
Property and equipment, gross 4,382,214   4,378,714
Land
     
Property and equipment      
Property and equipment, gross $ 1,021,245   $ 1,021,245