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Long-Term Debt and Capital Lease Obligations - Summary of Long Term Debt (Parenthetical) (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Capital lease obligations, Imputed interest at 4.75 to 46.0% [Member]
   
Long Term Debt And Equity Financings [Line Items]    
Imputed interest rate for capital lease obligation, minimum 4.75%  
Imputed interest rate for capital lease obligation, maximum 46.00%  
Monthly installment capital lease obligation $ 1,507  
Capital lease obligations, Imputed interest at 4.75 to 46.0% [Member] | November 2016 [Member]
   
Long Term Debt And Equity Financings [Line Items]    
Monthly installment capital lease obligation 8,540  
Nine Percent Senior Secured Notes Due Two Thousand Thirteen [Member]
   
Long Term Debt And Equity Financings [Line Items]    
Interest rate on convertible notes 9.00%  
Debt instrument converted date Jul. 16, 2013  
Debt instrument, net of discount   1,313,897
Seven Percent Secured Notes Due Two Thousand Sixteen [Member]
   
Long Term Debt And Equity Financings [Line Items]    
Interest rate on convertible notes 7.00%  
Debt instrument, maturity date July 2016  
Debt instrument, net of discount $ 4,656,934