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Derivative Instruments - Derivatives - Derivative Instruments Presented in Statements of Operations (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Gain (loss) on derivatives not designated as hedging instruments under ASC 815    
Kinross Calls $ 90,000 $ 48,000
Ely warrants    (74,000)
ILC warrants    (4,000)
Total gain (loss) $ 90,000 $ (30,000)