Note 10 - Retirement Plans - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Sep. 26, 2026 |
Sep. 27, 2025 |
Sep. 26, 2026 |
Sep. 27, 2025 |
|
| Service cost including administrative expenses | $ 1,188 | $ 1,323 | $ 2,277 | $ 2,645 |
| Interest cost | 2,814 | 2,912 | 5,628 | 5,825 |
| Expected return on plan assets | (5,769) | (4,818) | (11,538) | (9,637) |
| Net periodic benefit income | $ (1,767) | $ (583) | $ (3,633) | $ (1,167) |
| X | ||||||||||
- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan, including administration. No definition available.
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| X | ||||||||||
- Definition Amount of expense (reversal of expense) for net periodic benefit cost components, excluding settlement or curtailment expense. No definition available.
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| X | ||||||||||
- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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