Note 10 - Franchise Operations (Tables)
 12 Months Ended
Dec. 28, 2014
Franchise Income [Abstract]  
Condensed Income Statement [Table Text Block]
   

Fiscal Year

 
   

2014

   

2013

   

2012

 
                         

Franchise income:

                       

Income from existing franchise locations

  $ 15,598     $ 14,612     $ 13,436  

Opening and development fee income

    165       400       400  

Total franchise income:

  $ 15,763     $ 15,012     $ 13,836