OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 30, 2018
Accrued Liabilities, Current [Abstract]
Gift cards payable	$ 1,099	$ 1,035
Accrued expenses	1,343	1,238
Asset retirement obligations and lease reserves	29	161
Sales tax payable	345	274
State income tax payable	16	16
Deferred franchise fees	207	207
Accrued property and equipment purchases	4	39
Total other current liabilities	$ 3,043	$ 2,970