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Note 8 - Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 29, 2013
Sep. 30, 2012
Sep. 29, 2013
Sep. 30, 2012
Dec. 31, 2012
Note 8 - Income Taxes (Details) [Line Items]          
Income Tax Expense (Benefit) $ (16) $ 175 $ 135 $ 437  
Income Tax Expense (Benefit) Relating to Continuing and Discontinued Operations   (21)   264  
Deferred Tax Assets, Operating Loss Carryforwards         60,494
Deferred Tax Assets, Operating Loss Carryforwards, Foreign         12,390
Deferred Tax Assets, Operating Loss Carryforwards, Domestic         48,104
Operating Loss Carryforwards, Amount Recorded In Equity Upon Realization         2,949
Three Months Ended [Member]
          
Note 8 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax 0   0    
Nine Months Ended [Member]
          
Note 8 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax $ 12   $ 12