RETIREMENT BENEFIT PLANS (Details) - USD ($)	3 Months Ended
	Apr. 01, 2016	Mar. 27, 2015
Pension Benefits [Member]
Components of net periodic benefit cost [Abstract]
Interest cost	$ 15,000	$ 15,000
Expected return on plan assets	(16,000)	(16,000)
Amortization of net loss	10,000	12,000
Net periodic benefit cost	9,000	11,000
Entity's contributions towards pension plan	15,000
Expected future contributions in current fiscal year	46,000
Other Benefits [Member]
Components of net periodic benefit cost [Abstract]
Interest cost	13,000	12,000
Expected return on plan assets	0	0
Amortization of net loss	5,000	8,000
Net periodic benefit cost	$ 18,000	$ 20,000