Prepayment for Long-Term Assets (Tables)
 12 Months Ended
Dec. 31, 2014
Prepayment For Long-Term Assets [Abstract]  
Summary of prepayment for long term assets

 

  December 31, 2014  December 31, 2013 
Payment for vessels construction $13,750,102  $33,985,148 
  $13,750,102  $33,985,148