Note 16 - Income Taxes (Details) - Income Tax Reconciliation (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
Note 16 - Income Taxes (Details) - Income Tax Reconciliation [Line Items]                      
Income tax expense (benefit) $ 2,791 $ 1,472 $ 2,880 $ 4,686 $ 2,787 $ 1,623 $ 2,452 $ 3,881 $ 11,830 $ 10,744 $ 7,855
Continuing Operations [Member]                      
Note 16 - Income Taxes (Details) - Income Tax Reconciliation [Line Items]                      
Income tax expense at statutory rates                 13,489 12,333 8,416
State income taxes at state statutory rate, net of federal impact                 1,813 1,444 1,228
Federal FICA tip credit net benefit                 (2,814) (2,634) (2,449)
State employment tax credits generated in prior years                 (331) (623) 0
Increase to valuation allowance                 0 243 253
Other                 (327) (19) 407
Income tax expense (benefit)                 11,830 10,744 7,855
Effective tax rate                 30.70% 30.50% 32.70%
Discontinued Operations [Member]                      
Note 16 - Income Taxes (Details) - Income Tax Reconciliation [Line Items]                      
Income tax expense at statutory rates                 (6,204) (1,550) (367)
State income taxes at state statutory rate, net of federal impact                 (701) (198) (54)
Federal FICA tip credit net benefit                 (567) (678) (815)
Income tax expense (benefit)                 $ (7,472) $ (2,426) $ (1,236)
Effective tax rate                 42.20% 54.80% 117.90%