Note 10 - Franchise Operations (Details) - Consolidated Statements of Income - Franchise Income (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 28, 2014
Dec. 29, 2013
Dec. 30, 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