Note 10 - Fair Value Measurement (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy (USD $)
In Thousands, unless otherwise specified
Sep. 28, 2014
Dec. 29, 2013
Note 10 - Fair Value Measurement (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial Assets at Fair Value $ 4,938 $ 7,399
Financial Liabilities at Fair Value 2,010 313
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 10 - Fair Value Measurement (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial Assets at Fair Value 1,010 3,906
Money Market Funds [Member]
    
Note 10 - Fair Value Measurement (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial Assets at Fair Value 1,010 [1] 3,906 [2]
Foreign Exchange Forward [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 10 - Fair Value Measurement (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial Assets at Fair Value 3,928 3,493
Financial Liabilities at Fair Value 2,010 313
Foreign Exchange Forward [Member]
    
Note 10 - Fair Value Measurement (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial Assets at Fair Value 3,928 3,493
Financial Liabilities at Fair Value 2,010 313
Fair Value, Inputs, Level 1 [Member]
    
Note 10 - Fair Value Measurement (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial Assets at Fair Value 1,010 3,906
Fair Value, Inputs, Level 2 [Member]
    
Note 10 - Fair Value Measurement (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial Assets at Fair Value 3,928 3,493
Financial Liabilities at Fair Value $ 2,010 $ 313
[1] Total cash and cash equivalents and short-term investments of $326.8 million as of September 28, 2014 includes cash of $280.4 million held in operating accounts, $1.0 million in money market funds, $24.3 million held in certificates of deposit and $21.1 million held in time deposit accounts.
[2] Total cash and cash equivalents and short-term investments of $311.5 million as of December 29, 2013 includes cash of $282.2 million held in operating accounts, $3.9 million in money market funds, $11.4 million held in certificates of deposit and $14.0 million in time deposit accounts.