Quarterly report pursuant to Section 13 or 15(d)

Stock Incentive Plans (Details)

v3.3.0.814
Stock Incentive Plans (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Oct. 04, 2015
Oct. 05, 2014
Oct. 04, 2015
Oct. 05, 2014
Stock-based compensation expense recognized        
Stock-based compensation expense $ 1,194 $ 1,178 $ 4,043 $ 3,211
Stock Options        
Weighted average assumptions used in estimation of fair value of options        
Risk-free interest rate (as a percent)   1.40% 1.40% 1.70%
Expected years until exercise   4 years 2 months 12 days 4 years 9 months 18 days 5 years 8 months 12 days
Expected stock volatility (as a percent)   40.20% 40.60% 44.60%
Dividend yield (as a percent)   0.00% 0.00% 0.00%
Weighted average Black-Scholes fair value per share at date of grant (in dollars per share)   $ 18.12 $ 29.71 $ 30.70
Stock Options        
Outstanding, Beginning of period (in shares)     462  
Granted (in shares)     72  
Forfeited/expired (in shares)     (43)  
Exercised (in shares)     (94)  
Outstanding, End of period (in shares) 397   397  
Restricted Stock Units        
Restricted Stock Units        
Outstanding, Beginning of period (in shares)     101  
Granted (in shares)     33  
Forfeited/expired (in shares)     (12)  
Vested (in shares)     (45)  
Outstanding, End of period (in shares) 77   77  
Restaurant related        
Stock-based compensation expense recognized        
Stock-based compensation expense $ 26 $ 16 $ 88 $ 65
Selling, general, administrative related        
Stock-based compensation expense recognized        
Stock-based compensation expense $ 1,168 $ 1,162 $ 3,955 $ 3,146