Annual report pursuant to section 13 and 15(d)

11. Accounts Payable and Accrued Expenses (Tables)

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11. Accounts Payable and Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2012
Accounts Payable And Accrued Expenses Tables  
Schedule of accounts payable and accrued expenses

Accounts payable and accrued expenses consist of the following at December 31, 2012 and December 31, 2011:

    2012   2011
Trade accounts payable $ 8,800,525 $ 8,061,024
Accrued expenses   993,618   471,029
Accrued payroll and vacation   113,860   110,829
Interest payable   93,458   376,506
Deferred revenue   21,947   10,044
Other   556,088   419,549
  $ 10,579,496 $ 9,448,981