Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 30, 2022	Dec. 25, 2020
Income Tax Disclosure [Abstract]
Valuation allowance	$ (15,044,000)	$ (15,554,000)
Proceeds from sale of subsidiary treasury stock	1,104,000
Gain (loss) on sale of previously unissued stock by subsidiary	35,039,000
Unrecognized tax benefits (expense)	$ 161,000	$ 591,000	$ (187,000)

Unrecognized Tax Benefits (Expense)

No definition available.

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319

+ Details

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- Definition

The profit or loss on sales of previously unissued stock by subsidiaries made to investors outside the consolidated group that is not reported as operating income. Represents the difference in the parent company's carrying amount of the equity interest in the subsidiary or equity investee immediately before and after the transaction.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

The cash inflow from the issuance of an equity stock that has been previously reacquired by the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

+ Details

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