EMPLOYEE BENEFIT PLANS (Components of Net Periodic Postretirement Benefit Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 25, 2017	Mar. 26, 2016
Net periodic postretirement benefit cost:
Service cost	$ 30	$ 34
Interest cost	38	37
Amortization of prior service cost	25	58
Net periodic postretirement benefit cost	93	129
Benefit obligations recognized in other comprehensive income:
Amortization of prior service cost	(25)	(58)
Net gain (loss)	95	(8)
Benefit obligations recognized in other comprehensive income	70	(66)
Total recognized in net periodic benefit cost and other comprehensive income	163	63
Amount recognized in accumulated other comprehensive income, at end of fiscal year:
Unrecognized prior service cost	$ 233	$ 162