LONG-TERM DEBT AND FINANCING LEASE OBLIGATIONS (Details) - USD ($) $ in Thousands	6 Months Ended
Jul. 02, 2017	Jan. 01, 2017
Debt Instrument [Line Items]
Long-term financing lease net of current maturities	$ 1,378	$ 2,280
Long-term debt net of current maturities	$ 8,392	$ 8,849
Long-term Debt, Weighted Average Interest Rate	4.20%	4.00%
Spirit Financing Lease [Member]
Debt Instrument [Line Items]
Minimum monthly debt payment	$ 40
Financing Lease Obligations Total	1,749	$ 2,757
Less current maturities	(353)	(454)
Long-term financing lease net of current maturities	1,378	2,280
Less: deferred financing fees	$ (18)	(23)
Long-term Debt, Weighted Average Interest Rate	8.81%
Long-term Debt [Member]
Debt Instrument [Line Items]
Less: deferred financing fees	$ (239)	(234)
Less: current maturities	(919)	(917)
Long-term debt net of current maturities	8,392	8,849
Second Loan Agreement [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Debt Instrument Carrying Amount	5,909	6,300
First Loan Agreement [Member] \| Long-term Debt [Member]
Debt Instrument [Line Items]
Debt Instrument Carrying Amount	$ 3,641	$ 3,700

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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