RENTAL EXPENSE, LEASES AND COMMITMENTS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016
RENTAL EXPENSE, LEASES AND COMMITMENTS
2017	$ 1,842,000
2018	1,436,000
2019	803,000
2020	659,000
2021	572,000
Thereafter	2,234,000
Rental expense	4,595,000	$ 3,429,000
Operating leases rent expected future reimbursement
2017	166,000
2018	169,000
2019	171,000
2020	174,000
2021	177,000
Thereafter	$ 1,057,000