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Capital Stock - Schedule of Reserved Shares of Common Stock (Details) - shares	Sep. 28, 2025	Dec. 29, 2024	Dec. 31, 2023
Schedule of Reserved Shares of Common Stock [Line Items]
Common stock warrants		31,670,265	27,637,266
Employee stock purchase plan		2,628,996	2,628,996
Stock options and RSUs, issued and outstanding		11,979,368	11,774,743
Stock options and RSUs, authorized for future issuance		2,577,895	3,850,462
SAFE Agreement		2,750,000
Forward purchase agreements		6,720,000
Convertible notes		58,579,636
Total shares reserved	153,884,960	116,906,160	45,891,467

X

- Definition

The number of shares forward purchase agreements.

+ References

No definition available.

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X

- Definition

The amount of SAFE agreement.

+ References

No definition available.

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X

- Definition

Represents issuance of employee stock purchase plan.

+ References

No definition available.

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X

- Definition

Represents stock options restricted stock units authorized for future issuance.

+ References

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- Definition

Stock options and RSUs, issued and outstanding.

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- Definition

Number of warrants or rights outstanding.

+ References

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X

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

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X

- Definition

Aggregate number of nonredeemable convertible preferred shares reserved for future issuance.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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