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Components of Long-Term Debt (Detail) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Debt Instrument [Line Items]    
Long term debt $ 2,822,921 $ 5,996,889
Less: Amount Due Within One Year (887,222) (4,924,838)
Amount Due After One Year 1,935,699 1,072,051
Notes Payable | The principal is not subject to a fixed repayment schedule
   
Debt Instrument [Line Items]    
Long term debt 209,208 209,208
Notes Payable | The principal and interest is subject to a fixed blended repayment schedule of 36 months, commencing July 15, 2013.
   
Debt Instrument [Line Items]    
Long term debt 279,525 294,319
Notes Payable | The principal is subject to a fixed semi-annual repayment schedule commencing October 31, 2012 over 48 months.
   
Debt Instrument [Line Items]    
Long term debt 396,004 396,004
Reduction in the principal amount of long term debt (103,329) (122,305)
Notes Payable | The principal and interest is subject to a fixed blended repayment schedule of 36 months, commencing July 15, 2013
   
Debt Instrument [Line Items]    
Long term debt 101,748 101,748
Convertible, Senior Secured Term Debt
   
Debt Instrument [Line Items]    
Long term debt 619,122  
Convertible, Senior Secured Term Debt | The principal is to be repaid over 15 months, with equal payments of principal beginning on October 15th
   
Debt Instrument [Line Items]    
Long term debt 619,122 4,549,250
Convertible, Senior Secured Term Debt | Unamortized Debt Discounts Net
   
Debt Instrument [Line Items]    
Long term debt   (752,248)
Long-term secured deferred trade payable | The principal and interest is subject to a fixed blended repayment schedule of 24 and 36 months, commencing July 15, 2013.
   
Debt Instrument [Line Items]    
Long term debt $ 1,320,643 $ 1,320,643