SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Sales Revenue, Net - Credit Concentration Risk	6 Months Ended
Jul. 01, 2018	Jun. 25, 2017
Maryland
Revenue, Major Customer [Line Items]
Concentration risk, percentage	11.00%	13.00%
Tennessee
Revenue, Major Customer [Line Items]
Concentration risk, percentage	14.00%	10.00%
Texas
Revenue, Major Customer [Line Items]
Concentration risk, percentage	29.00%	29.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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