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Note 5 - Employee Benefit Plans - The Changes in the Post-retirement Benefit Obligations (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 29, 2025
Mar. 30, 2024
Mar. 25, 2023
Post-retirement benefit obligation, at beginning of fiscal year $ 1,134 $ 1,266 $ 1,326
Service cost 13 14 17
Interest cost 56 60 45
Plan Amendments 0 0 193
Benefits paid (102) (121) (136)
Actuarial (gain) (89) (85) (179)
Post-retirement benefit obligation, at end of fiscal year 1,012 1,134 1,266
Fair value of plan assets, at end of fiscal year 0 0 0
Funded status, at end of fiscal year (1,012) (1,134) (1,266)
Accumulated post-retirement benefit obligation, at end of fiscal year $ 1,012 $ 1,134 $ 1,266