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Investments
 6 Months Ended
Jun. 30, 2013
Investments [Abstract]  
Investments

Investments

The Company classifies investments in marketable securities as trading, available-for-sale or held-to-maturity at the time of purchase and periodically re-evaluates such classifications. Trading securities are carried at fair value, with unrealized holding gains and losses included in earnings. Held-to-maturity securities are recorded at cost and are adjusted for the amortization or accretion of premiums or discounts over the life of the related security. Unrealized holding gains and losses on available-for-sale securities are excluded from earnings and are reported as a separate component of accumulated other comprehensive income (loss) until realized. In determining realized gains and losses, the cost of securities sold is based on the specific identification method. Interest and dividends on the investments are accrued at the balance sheet date. 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