v3.8.0.1
ASSET IMPAIRMENT, ESTIMATED LEASE TERMINATION AND OTHER CLOSING COSTS (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Oct. 01, 2017
USD ($)
Oct. 02, 2016
USD ($)
Oct. 01, 2017
USD ($)
restaurant
Oct. 02, 2016
USD ($)
Impaired Long-Lived Assets Held and Used [Line Items]        
Restaurants Closed | restaurant     12  
Depreciation and amortization $ 1,380 $ 909 $ 2,868 $ 2,845
Asset impairment, estimated lease termination and other closing costs 2,405 3,620 7,011 4,684
Service Life [Member]        
Impaired Long-Lived Assets Held and Used [Line Items]        
Depreciation and amortization     $ 754  
Change in Accounting Estimate, Description     Pursuant to the restaurant optimization plan, the Company reassessed the estimated useful life of its restaurants slated for closure significantly before the end of the previously estimated useful life. As a result of this reassessment, the Company is depreciating certain of its restaurant assets over a shorter period of time, which resulted in higher depreciation and amortization expense of approximately $754,000 during the nine months ended October 1, 2017  
Restaurant Assets [Member]        
Impaired Long-Lived Assets Held and Used [Line Items]        
Asset impairments, net 822 3,420 $ 3,864 4,313
Lease Termination Charges [Member]        
Impaired Long-Lived Assets Held and Used [Line Items]        
Business exit costs 1,479   3,014  
Restaurant Closure Expenses [Member]        
Impaired Long-Lived Assets Held and Used [Line Items]        
Business exit costs $ 104 $ 200 $ 133 200
Software [Member]        
Impaired Long-Lived Assets Held and Used [Line Items]        
Business exit costs       $ 171