v3.8.0.1

ASSET IMPAIRMENT, ESTIMATED LEASE TERMINATION AND OTHER CLOSING COSTS (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($) restaurant | Jan. 01, 2017 USD ($)
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Restaurants Closed | restaurant | 13 |
Depreciation and amortization | $ 2,785 | $ 2,873
Asset impairments, net | 3,154 | 4,426
Asset impairment, estimated lease termination and other closing costs | 6,816 | 4,788
Balance at Beginning of Period | 594 | 609
Additions Charged To Cost And Expense |  | 89
Valuation Allowances And Reserves Deductions |  | (104)
Balance at End of Period |  | 594
Service Life [Member] |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Depreciation and amortization | 870 |
Lease Termination Charges [Member] |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Business exit costs | 3,403 |
Balance at Beginning of Period | 594 |
Additions Charged To Cost And Expense | 3,150 |
Valuation Allowances And Reserves Deductions | (1,945) |
Balance at End of Period | 1,799 | 594
Restaurant Closure Expenses [Member] |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Business exit costs | $ 259 | 206
Software [Member] |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Business exit costs |  | $ 156

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