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FAIR VALUE (Tables) | 12 Months Ended
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Dec. 26, 2020
Assets measured at fair value | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 26, 2020 | ​ | December 28, 2019
​ | ​ | 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 | ​ | ​ | ​
(in thousands) |  | (Level 1) |  | (Level 2) | ​ | ​ | (Level 3) | ​ | Total |  | (Level 1) |  | (Level 2) | ​ | ​ | (Level 3) |  | Total
Money market funds | ​ | $ | 19 |  | $ | 4,643 | ​ | $ | — |  | $ | 4,662 |  | $ | 162,626 |  | $ | 562 | ​ | $ | — |  | $ | 163,188
Fixed income funds | ​ |  | 246 | ​ |  | 16,224 | ​ | ​ | — |  |  | 16,470 | ​ |  | 234 | ​ |  | 15,495 | ​ | ​ | — |  |  | 15,729
Equity securities | ​ |  | 12,602 | ​ |  | — | ​ | ​ | — |  |  | 12,602 | ​ |  | 9,734 | ​ |  | — | ​ | ​ | — |  |  | 9,734
Alternative investments | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,040 | ​ | ​ | 2,040 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,941 | ​ | ​ | 1,941
Mutual funds: | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
Domestic stock funds | ​ |  | 8,088 | ​ |  | — | ​ | ​ | — |  |  | 8,088 | ​ |  | 3,308 | ​ |  | — | ​ | ​ | — |  |  | 3,308
International stock funds | ​ |  | 1,440 | ​ |  | — | ​ | ​ | — |  |  | 1,440 | ​ |  | 1,741 | ​ |  | — | ​ | ​ | — |  |  | 1,741
Target funds | ​ |  | 114 | ​ |  | — | ​ | ​ | — |  |  | 114 | ​ |  | 281 | ​ |  | — | ​ | ​ | — |  |  | 281
Bond funds | ​ |  | 147 | ​ |  | — | ​ | ​ | — |  |  | 147 | ​ |  | 850 | ​ |  | — | ​ | ​ | — |  |  | 850
Alternative funds | ​ | ​ | 482 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 482 | ​ | ​ | 1,747 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,747
Total mutual funds | ​ |  | 10,271 | ​ |  | — | ​ | ​ | — |  |  | 10,271 | ​ |  | 7,927 | ​ |  | — | ​ | ​ | — |  |  | 7,927
Total | ​ | $ | 23,138 | ​ | $ | 20,867 | ​ | $ | 2,040 | ​ | $ | 46,045 | ​ | $ | 180,521 | ​ | $ | 16,057 | ​ | $ | 1,941 | ​ | $ | 198,519
Assets at fair value | ​ | $ | 23,138 | ​ | $ | 20,867 | ​ | $ | 2,040 |  | $ | 46,045 | ​ | $ | 180,521 | ​ | $ | 16,057 | ​ | $ | 1,941 |  | $ | 198,519
Available for sale investment portfolio | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 26, 2020 | ​ | December 28, 2019
​ | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​
​ |  | Cost |  | Gain/(Loss) |  | Fair Value |  | Cost |  | Gain/(Loss) |  | Fair Value
Fixed Income | ​ | $ | 15,325 |  | $ | 1,145 |  | $ | 16,470 | ​ | $ | 15,376 |  | $ | 353 |  | $ | 15,729
Equity | ​ |  | 9,787 | ​ |  | 2,815 |  |  | 12,602 | ​ |  | 7,958 | ​ |  | 1,776 |  |  | 9,734
Mutual Funds | ​ | ​ | 8,235 | ​ | ​ | 1,430 |  | ​ | 9,665 | ​ | ​ | 6,568 | ​ | ​ | 284 |  | ​ | 6,852
Alternative Investments | ​ | ​ | 1,904 | ​ | ​ | 136 |  | ​ | 2,040 | ​ | ​ | 1,811 | ​ | ​ | 130 |  | ​ | 1,941
Total | ​ | $ | 35,251 | ​ | $ | 5,526 |  | $ | 40,777 | ​ | $ | 31,713 | ​ | $ | 2,543 |  | $ | 34,256

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + 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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