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Fair Value Measurements (Details) - Summary of Marketable Securities Measured at Fair Value (USD $)
9 Months Ended
Sep. 30, 2013
Summary of Marketable Securities Measured at Fair Value [Abstract]  
Balance at January 1, 2013 $ 1,540,000
Increase in fair value of investment 40,000
Balance at September 30, 2013 $ 1,580,000