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Business and Significant Accounting Policies - Fair Value of Derivative Instruments Balance Sheet (Details) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Derivatives not designated as hedging instruments under ASC 815    
Kinross February 2013 call option (other current liabilities) $ 68   
Ely investment warrants (other current assets)    74
International Lithium Corp warrants (other current assets) 1 4
Warrant derivative liability (warrant liability) $ 1,379