Quarterly report pursuant to Section 13 or 15(d)

Basis Of Presentation (Narrative) (Detail)

v2.4.0.6
Basis Of Presentation (Narrative) (Detail) (USD $)
 9 Months Ended 9 Months Ended
Sep. 23, 2012
Ratio
Restaurants
State
Sep. 25, 2011
Dec. 25, 2011
Sep. 23, 2012
IPO [Member]
Ratio
Jul. 27, 2012
IPO [Member]
Jul. 27, 2012
IPO [Member]
Grants To Non Executive Employees [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]            
Number of restaurant 38          
Number of states 8          
Number of shares sold in offering 15,918,427   208,505   6,708,332  
Shares issued to cover over allotment           874,999
Net proceeds from the offering stock $ 81,104,000 $ 83,000   $ 78,100,000    
Estimated offering expenses       9,100,000    
Repayment of credit facilities 79,400,000          
Total outstanding debt under the credit facility $ 5,000,000          
Reverse stock split ratio 2.7585470602     2.7585470602    
Common stock shares authorized 60,000,000   11,818,345 60,000,000 11,818,345  
Common stock par value $ 0.01   $ 0.01 $ 0.01    
Preferred stock authorized shares 15,000,000   10,657,252 15,000,000 9,017,217  
Preferred stock share par value $ 0.01   $ 0.01 $ 0.01