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Investment in Available-for-Sale Securities (Details 1) (USD $)
Jun. 30, 2014
Dec. 31, 2013
Due within one year, Cost $ 946,148  
Due after one year through three years, Cost 666,000  
Due after three years, Cost 520,787  
Available-for-sale Securities, Amortized Cost, Total 2,132,935  
Due within one year, Fair Value 944,989  
Due after one year through three years, Fair Value 674,647  
Due after three years, Fair Value 522,181  
Available-for-sale Securities, Fair Value, Total $ 2,141,817 $ 2,526,542