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Note 8 - Segment Information (Detail) - Sales to External Customers and Long-lived Assets by Geographic Area (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Dec. 29, 2012
Net sales to external customers $ 104,265 $ 96,373  
Property and equipment, net 68,048 74,771 71,459
North America [Member]
     
Net sales to external customers 86,206 [1] 80,200 [1]  
Property and equipment, net 59,375 [1] 63,364 [1]  
Europe [Member]
     
Net sales to external customers 17,584 [2] 15,710 [2]  
Property and equipment, net 8,673 [2] 11,407 [2]  
Other Geographic Region [Member]
     
Net sales to external customers 475 [3] 463 [3]  
Property and equipment, net    [3]    [3]  
[1] North America includes the United States, Canada, Puerto Rico and franchise business in Mexico
[2] Europe includes the United Kingdom, Ireland and franchise businesses in Europe
[3] Other includes franchise businesses outside of the North America and Europe