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Note 2 - Prepaid Expenses and Other Assets (Tables)
3 Months Ended
Apr. 04, 2015
Prepaid Expenses And Other Assets [Abstract]  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
   

April 4,

   

January 3,

   

March 29,

 
   

2015

   

2015

   

2014

 

Prepaid rent

  $ 8,283     $ 7,848     $ 4,059  

Short-term investment

    984       1,121       -  

Other

    4,624       6,642       5,580  
    $ 13,891     $ 15,611     $ 9,639