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Long term debt (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Debt Instrument [Line Items]    
Total debt $ 5,301,328 $ 7,025,353
Less discount 96,161 172,693
Less current portion 5,205,167 1,647,493
Long term debt, excluding current portion 0 5,205,167
Loan Secured Through An Inter Creditor Agreement With The Republic Bank And Trust [Member]
   
Debt Instrument [Line Items]    
Total debt $ 5,301,328 $ 7,025,353