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Fair Value Disclosures (Details) (USD $)
Mar. 31, 2013
Dec. 31, 2012
Fair Value, Inputs, Level 1 [Member]
   
Investments $ 251,500 $ 142,800
Fair Value, Inputs, Level 2 [Member]
   
Royalty guarantee (79,200) (79,000)
Advance Guarantee $ (366,900) $ (364,200)