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EMPLOYEE BENEFIT PLANS (Change in the Postretirement Benefit Obligation) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 27, 2021
Mar. 28, 2020
Retirement Benefits [Abstract]    
Post-retirement benefit obligation, at beginning of fiscal year $ 1,509 $ 1,311
Service cost 84 77
Interest cost 48 48
Benefits paid (95) (98)
Actuarial loss 285 171
Post-retirement benefit obligation, at end of fiscal year 1,831 1,509
Fair value of plan assets, at end of fiscal year
Funded status, at end of fiscal year (1,831) (1,509)
Accumulated post-retirement benefit obligation, at end of fiscal year $ 1,831 $ 1,509