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COMMITMENTS AND CONTINGENCIES	12 Months Ended
COMMITMENTS AND CONTINGENCIES	Dec. 30, 2017
COMMITMENTS AND CONTINGENCIES.
COMMITMENTS AND CONTINGENCIES	6. COMMITMENTS AND CONTINGENCIES The Company is involved in litigation matters related to its business. In the Company’s opinion, none of these proceedings, when concluded, will have a material adverse effect on the Company’s consolidated results of operations, cash flows or financial condition as the Company has established adequate accruals for matters that are probable and estimable. The Company does not accrue estimated future legal costs related to the defense of these matters but rather expenses legal costs as incurred. Also see Note 2 for discussion of litigation regarding the Pueblo sand and gravel lease.