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Marketable Securities (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Amortized Cost $ 150,793 $ 365,786
Unrealized Gains in Comprehensive Income 30,363 83,817
Unrealized Losses in Comprehensive Income (948) (298,810)
Sales of Securities (180,208) 0
Fair Value $ 0 $ 150,793