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Accrued Liabilities (Detail) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Schedule of Accrued Liabilities [Line Items]    
Royalties $ 254,007 $ 239,129
Payroll 58,161 54,325
Sales tax payable 36,740 29,112
Insurance premiums payable 55,543 20,320
Interest 67,408  
Miscellaneous 16,829 16,829
Total accrued liabilities $ 488,688 $ 359,715