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Investments (Tables)
 6 Months Ended
Jun. 30, 2013
Investments [Abstract]  
Schedule of Investments

At June 30, 2013 and December 31, 2012 all investments were classified as held to maturity and consisted of the following:

                  June 30, 2013        December 31, 2012
Certificates of Deposit Maturity   Value of Held to Maturity   Value of Held to Maturity
Investment Date   Investments (based on cost)   Investments (based on costs)
$2,000,000   10-17-14                $ 2,004,000                              $ 2,000,000              
2,000,000   10-17-13       2,000,000         2,000,000  
500,940   12-29-13       501,877         500,940  
300,564   10-06-13       301,126         300,564  
251,417   03-29-14       252,453         251,417  
          $ 5,059,456       $ 5,052,921