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FAIR VALUE (Tables) | 12 Months Ended
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Dec. 27, 2025
FAIR VALUE |
Assets measured at fair value | We apply the provisions of ASC 820, Fair Value Measurements and Disclosures, to assets and liabilities measured at fair value. Assets and liabilities measured at fair value are as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 27, 2025 | ​ | December 28, 2024
​ | ​ | Quoted | ​ | Prices with | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Quoted | ​ | Prices with | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Prices in | ​ | Other | ​ | ​ | Prices with | ​ | ​ | ​ | ​ | Prices in | ​ | Other | ​ | ​ | Prices with | ​ | ​ | ​
​ | ​ | Active | ​ | Observable | ​ | ​ | Unobservable | ​ | ​ | ​ | ​ | Active | ​ | Observable | ​ | ​ | Unobservable | ​ | ​ | ​
​ | ​ | Markets | ​ | Inputs | ​ | ​ | Inputs | ​ | ​ | ​ | ​ | Markets | ​ | Inputs | ​ | ​ | Inputs | ​ | ​ | ​
​ | ​ ​ ​ | (Level 1) | ​ ​ ​ | (Level 2) | ​ ​ ​ | ​ | (Level 3) | ​ | Total | ​ ​ ​ | (Level 1) | ​ ​ ​ | (Level 2) | ​ ​ ​ | ​ | (Level 3) | ​ ​ ​ | Total
Money market funds | ​ | $ | 182,051 | ​ | $ | 26,450 | ​ | $ | — | ​ ​ ​ | $ | 208,501 | ​ ​ ​ | $ | 356,700 | ​ | $ | 21,150 | ​ | $ | — | ​ ​ ​ | $ | 377,850
Fixed income funds | ​ |  | 5,365 | ​ | ​ | 44,227 | ​ | ​ | — |  |  | 49,592 | ​ |  | 5,272 | ​ | ​ | 33,076 | ​ | ​ | — |  |  | 38,348
Treasury securities | ​ | ​ | 345 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 345 | ​ | ​ | 344 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 344
Equity securities | ​ |  | 18,492 | ​ | ​ | — | ​ | ​ | 28,000 |  |  | 46,492 | ​ |  | 16,431 | ​ | ​ | — | ​ | ​ | 26,000 |  |  | 42,431
Alternative investments | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | 4,186 | ​ | ​ | 4,186 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4,044 | ​ | ​ | 4,044
Mutual funds: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
Domestic stock funds | ​ |  | 10,436 | ​ | ​ | — | ​ | ​ | — |  |  | 10,436 | ​ |  | 9,534 | ​ | ​ | — | ​ | ​ | — |  |  | 9,534
International stock funds | ​ |  | 816 | ​ | ​ | — | ​ | ​ | — |  |  | 816 | ​ |  | 641 | ​ | ​ | — | ​ | ​ | — |  |  | 641
Target funds | ​ |  | 11 | ​ | ​ | — | ​ | ​ | — |  |  | 11 | ​ |  | 10 | ​ | ​ | — | ​ | ​ | — |  |  | 10
Bond funds | ​ |  | 6 | ​ | ​ | — | ​ | ​ | — |  |  | 6 | ​ |  | 6 | ​ | ​ | — | ​ | ​ | — |  |  | 6
Alternative funds | ​ | ​ | 490 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 490 | ​ | ​ | 477 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 477
Total mutual funds | ​ |  | 11,759 | ​ |  | — | ​ | ​ | — |  |  | 11,759 | ​ |  | 10,668 | ​ |  | — | ​ | ​ | — |  |  | 10,668
Total | ​ | $ | 218,012 | ​ | $ | 70,677 | ​ | $ | 32,186 | ​ | $ | 320,875 | ​ | $ | 389,415 | ​ | $ | 54,226 | ​ | $ | 30,044 | ​ | $ | 473,685
Available for sale investment portfolio | Ardellis’ available for sale investment portfolio, including funds held with the State of Michigan, consists of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 27, 2025 | ​ | December 28, 2024
​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | ​ | ​ | Unrealized | ​ | ​
​ | ​ ​ ​ | Cost | ​ ​ ​ | Gain (Loss) | ​ ​ ​ | Fair Value | ​ ​ ​ | Cost | ​ ​ ​ | Gain (Loss) | ​ ​ ​ | Fair Value
Fixed income | ​ | $ | 49,342 | ​ | $ | 209 | ​ | $ | 49,551 | ​ | $ | 39,645 | ​ ​ ​ | $ | (1,297) | ​ | $ | 38,348
Treasury securities | ​ | ​ | 345 | ​ | ​ | — | ​ | ​ | 345 | ​ | ​ | 344 | ​ | ​ | — | ​ | ​ | 344
Equity | ​ |  | 14,028 | ​ | ​ | 4,464 | ​ |  | 18,492 | ​ |  | 13,161 | ​ | ​ | 3,270 | ​ |  | 16,431
Mutual funds | ​ | ​ | 8,545 | ​ | ​ | 3,152 | ​ | ​ | 11,697 | ​ | ​ | 8,549 | ​ | ​ | 2,064 | ​ | ​ | 10,613
Alternative investments | ​ | ​ | 3,436 | ​ | ​ | 750 | ​ | ​ | 4,186 | ​ | ​ | 3,321 | ​ | ​ | 723 | ​ | ​ | 4,044
Total | ​ | $ | 75,696 | ​ | $ | 8,575 | ​ | $ | 84,271 | ​ | $ | 65,020 | ​ | $ | 4,760 | ​ | $ | 69,780

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
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