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Note 4 - Income Taxes (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Note 4 - Income Taxes (Details) [Line Items]          
Income Tax Expense (Benefit) $ (217,000) $ 22,000 $ (111,000) $ 70,000  
Unrecognized Tax Benefits 336,000   336,000   508,000
Tax Benefit - Limitations Lapsing [Member]
         
Note 4 - Income Taxes (Details) [Line Items]          
Income Tax Expense (Benefit) $ (236,000)   $ 236,000