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Business and Significant Accounting Policy - Gain Loss on Derivative Instruments (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Notes to Financial Statements        
Ely investment warrants Gain(Loss) $ (117,000) $ 17,000 $ (51,000) $ 73,000
International Lithium Corp warrants Gain(Loss) (3,000)    (3,000)   
Kinross collar Gain(Loss)          (2,000)
Total derivatives Gain(Loss) $ (120,000) $ 17,000 $ (54,000) $ 71,000