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Computation of Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2013
Computation of Earnings Per Share [Abstract]  
Computation of earnings per share
Basic and diluted earnings per share are calculated as follows:

   
For the Nine Months Ended September 30,
  
For the Three Months
Ended September 30,
 
   
2013
  
2012
  
2013
  
2012
 
Net income/(loss)
 $4,613,300  $3,398,500  $(340,600) $1,112,900 
Weighted average shares outstanding for the period
  1,543,257   1,543,257   1,543,257   1,543,257 
Dilutive effect of warrants
  44,072   17,196   -   21,800 
Weighted average diluted shares used in calculation
   of diluted earnings/(loss) per share
  1,587,329   1,560,453   1,543,257   1,565,057 
Basic earnings/(loss) per share
 $2.99  $2.20  $(0.22) $0.72 
Diluted earnings/(loss) per share
 $2.91  $2.18  $(0.22) $0.71