Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 27, 2025 |
Dec. 28, 2024 |
|
| AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||
| Balance a the beginning | $ 16,218 | $ 29,291 |
| Unrecognized net actuarial gain on postretirement benefit plans, net of tax | 20 | 52 |
| Balance at the ending | 8,798 | 16,218 |
| Income taxes | 0 | 0 |
| Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | (38) | (34) |
| Income taxes | 0 | 0 |
| Post-Retirement Liabilities | ||
| AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||
| Balance a the beginning | 286 | 268 |
| Unrecognized net actuarial gain on postretirement benefit plans, net of tax | 20 | 52 |
| Balance at the ending | 268 | 286 |
| Income taxes | 0 | 0 |
| Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent | (38) | (34) |
| Income taxes | 0 | 0 |
| Accumulated Other Comprehensive Income | ||
| AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||
| Balance a the beginning | 286 | 268 |
| Balance at the ending | $ 268 | $ 286 |
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount, after tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|