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

July 4,

   

January 3,

   

June 28,

 
   

2015

   

2015

   

2014

 

Prepaid rent

  $ 8,432     $ 7,848     $ 4,995  

Short-term investment

    895       1,121       -  

Other

    4,846       6,642       5,399  
    $ 14,173     $ 15,611     $ 10,394