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Note 7 - Segment Information (Detail) - Sales to External Customers and Long-lived Assets by Geographic Area (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jul. 02, 2011
Jun. 30, 2012
Jul. 02, 2011
Dec. 31, 2011
Net sales to external customers $ 80,410 $ 81,841 $ 176,783 $ 177,831  
Property and equipment, net 73,518 81,225 73,518 81,225 77,445
North America [Member]
          
Net sales to external customers 65,411 [1] 67,406 [1] 145,611 [1] 146,679 [1]  
Property and equipment, net 62,672 [1] 69,879 [1] 62,672 [1] 69,879 [1]  
Europe [Member]
          
Net sales to external customers 14,575 [2] 13,976 [2] 30,285 [2] 30,224 [2]  
Property and equipment, net 10,846 [2] 11,346 [2] 10,846 [2] 11,346 [2]  
Other Geographic Region [Member]
          
Net sales to external customers 424 [3] 459 [3] 887 [3] 929 [3]  
Property and equipment, net    [3]    [3]    [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