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Marketable Securities (Tables) | 12 Months Ended
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Dec. 27, 2025
Marketable Securities. |
Schedule Of Marketable Securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
(amounts in thousands) | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
December 27, 2025 | ​ ​ ​ | Cost | ​ ​ ​ | Holding Gains | ​ ​ ​ | Holding Losses | ​ ​ ​ | Value
Available-for-sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Level 2 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Corporate and municipal bonds | ​ | $ | 94,527 | ​ | $ | 2,105 | ​ | $ | (4,519) | ​ | ​ | 92,113
Commercial paper | ​ | ​ | 4,946 | ​ | ​ | 32 | ​ | ​ | — | ​ | ​ | 4,978
Total | ​ | $ | 99,473 | ​ | $ | 2,137 | ​ | $ | (4,519) | ​ | $ | 97,091
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
(amounts in thousands) | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
December 28, 2024 | ​ ​ ​ | Cost | ​ ​ ​ | Holding Gains | ​ ​ ​ | Holding Losses | ​ ​ ​ | Value
Available-for-sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Level 1 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Equity securities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 5,930
Level 2 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Corporate and municipal bonds | ​ | $ | 171,258 | ​ | $ | 2,525 | ​ | $ | (6,583) | ​ | ​ | 167,201
Commercial paper | ​ | ​ | 18,671 | ​ | ​ | 169 | ​ | ​ | — | ​ | ​ | 18,840
Total | ​ | $ | 189,930 | ​ | $ | 2,695 | ​ | $ | (6,583) | ​ | $ | 191,971
Schedule Of Maturities Of Marketable Securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Amortized | ​ | Fair
(amounts in thousands) | ​ ​ ​ | Cost | ​ ​ ​ | Value
Available-for-sale: | ​ | ​ | ​ | ​ | ​ | ​
Due within one year | ​ | $ | 8,598 | ​ | $ | 8,590
Due after one year through five years | ​ | ​ | 30,573 | ​ | ​ | 29,550
Due after five years through ten years | ​ | ​ | 7,761 | ​ | ​ | 7,612
Due after ten years | ​ | ​ | 52,541 | ​ | ​ | 51,339
Total | ​ | $ | 99,473 | ​ | $ | 97,091
​

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