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Other Current Assets (Tables)
6 Months Ended
Jun. 30, 2013
Other Current Assets
Other current assets consisted of the following at June 30, 2013 and December 31, 2012:

             
Description
 
June 30,
2013
   
December 31, 2012
 
Supplies inventory
  $ 946,713     $ 604,179  
Deferred offering costs
    440,305       341,166  
Prepaid expenses
    306,992       132,201  
    $ 1,694,010     $ 1,077,546