RISK MANAGEMENT (Details) - USD ($)	Jul. 01, 2017	Dec. 31, 2016
RISK MANAGEMENT
Self insurance retention per occurrence	$ 350,000
Aggregate coverage	$ 580,388
Retention limit in excess of claims paid and accrued		$ 298,000
Estimated additional future claims		196,537
Cash collateral and escrow held by insurance carrier for workers' compensation insurance		$ 300,000