Quarterly report pursuant to sections 13 or 15(d)

5. Accounts Payable and Accrued Expenses (Tables)

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5. Accounts Payable and Accrued Expenses (Tables)
3 Months Ended
Mar. 31, 2014
Notes to Financial Statements  
Accounts payable and accrued expenses

Accounts payable and accrued expenses consist of the following at March 31, 2014 and December 31, 2013:

 

    March 31, 2014   December 31, 2013
    (unaudited)    
Trade accounts payable   $ 3,843,606     $ 5,933,736  
Accrued expenses     4,227,826       3,101,103  
Accrued payroll and vacation     89,998       102,898  
Interest payable     81,999       421,632  
Deferred revenue     833,866       407,426  
Other     661,547       1,194,755  
Total accounts payable and accrued expenses   $ 9,738,842     $ 11,161,550