OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Apr. 01, 2018	Jan. 02, 2018	Dec. 31, 2017
Accrued Liabilities, Current [Abstract]
Gift cards payable	$ 900		$ 1,000
Miscellaneous other current liabilities	772		668
Lease reserves, current	409		1,165
Sales tax payable	250		242
Accrued real estate taxes	115		26
Deferred franchise fees	225
Accrued property and equipment purchases	17		17
Total other current liabilities	$ 2,688	$ 3,342	$ 3,118