Note 4 - Discontinued Operations (Details) - Summary of Discontinued Operations (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 28, 2014
Sep. 28, 2014
Jun. 29, 2014
Mar. 30, 2014
Dec. 29, 2013
Sep. 29, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 28, 2014
Dec. 29, 2013
Dec. 30, 2012
Revenues                      
Revenues                 $ 77,360 $ 85,101 $ 88,304
Impairment losses                      
Impairment losses   15,300     3,300       0 0 3,262
Gain on settlement - Mitchell's Restaurants           (2,200)     0 (1,719) (683)
Remeasurement of lease exit liability                   1,716  
Total costs and expenses                 95,087 89,531 89,352
Loss before income taxes                 (17,727) (4,430) (1,048)
Income tax benefit                 (7,472) (2,426) (1,236)
Income (loss) from discontinued operations, net of income taxes (870) (9,496) 236 (125) (1,836) (38) 626 (755) (10,255) (2,004) 187
Mitchell's Restaurants [Member]                      
Revenues                      
Revenues                 73,974 75,925 77,197
Recurring costs and expenses                      
Recurring costs and expenses                 73,852 75,396 76,502
Impairment losses                      
Impairment losses                 15,295 2,512  
Loss on pending sale of Mitchell's Restaurants 1,825               1,825    
Gain on settlement - Mitchell's Restaurants                   (437)  
Other Restaurants [Member]                      
Revenues                      
Revenues                 3,386 9,176 11,107
Recurring costs and expenses                      
Recurring costs and expenses                 4,115 9,594 11,157
Impairment losses                      
Impairment losses                   $ 750 $ 1,693