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EMPLOYEE BENEFIT PLANS (Components of Net Periodic Postretirement Benefit Cost) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 26, 2016
Mar. 28, 2015
Net periodic postretirement benefit cost:    
Service cost $ 34 $ 19
Interest cost 37 39
Amortization of prior service cost 58 58
Net periodic postretirement benefit cost 129 116
Benefit obligations recognized in other comprehensive income:    
Amortization of prior service cost (58) (58)
Net gain (loss) 8 (133)
Benefit obligations recognized in other comprehensive income (66) 75
Total recognized in net periodic benefit cost and other comprehensive income 63 191
Amount recognized in accumulated other comprehensive income, at end of fiscal year:    
Unrecognized prior service cost $ 162 $ 229