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Summary of Significant Accounting Policies (Details 3) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Components of our accumulated OCI    
Net unrealized gain (loss) on marketable securities $ (1,356) $ (2,694)
Unrealized gain on foreign currency translation 194,533 43,407
Accumulated other comprehensive income $ 193,177 $ 40,713