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Note 6 - Income Taxes (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Income Tax Disclosure [Abstract]          
Income Tax Expense (Benefit) $ 420,000 $ (16,812,000) $ 1,073,000 $ (16,812,000)  
Valuation Allowance Percentage Released   96.70%      
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount   $ (16,800,000)      
Deferred Tax Assets, Valuation Allowance 572,000,000,000   572,000,000,000    
Deferred Tax Assets, Capital Loss Carryforwards 1,500,000   1,500,000    
Increase (Decrease) in Deferred Income Taxes     (1,000,000)    
Deferred Tax Assets, Net $ 13,900,000   $ 13,900,000   $ 14,900,000