Preferred Stock - Series S Convertible Preferred Stock (Details) $ in Thousands		12 Months Ended
	Dec. 28, 2022 USD ($) shares	Dec. 28, 2024 USD ($) shares	Dec. 30, 2023 shares
Class of Stock [Line Items]
Reclassification to permanent equity		$ 7,993
Series S
Class of Stock [Line Items]
Reclassification to current liabilities		2,661
Reclassification to permanent equity		$ 7,993
Preferred stock, conversion ratio		1
Preferred stock, outstanding shares (in shares) | shares		100,000	100,000
Series S | Soin Therapeutics
Class of Stock [Line Items]
Issuance of shares of common stock to legacy equity holders	$ 30,000
Company tendered, shares (in shares) | shares	100,000
Dr. Soin | Related Party
Class of Stock [Line Items]
Common stock, shares outstanding (as percent)	4.99%
Dr. Soin | Stock Conversion 1 | Related Party | Series S
Class of Stock [Line Items]
Conversion of stock, amount converted	$ 3,000
Conversion of stock, commencement period (in years)	1 year
Dr. Soin | Stock Conversion 2 | Related Party | Series S
Class of Stock [Line Items]
Conversion of stock, amount converted	$ 10,000
Dr. Soin | Stock Conversion 3 | Related Party
Class of Stock [Line Items]
Percentage of gross revenue	5.00%
Dr. Soin | Stock Conversion 3 | Related Party | Series S
Class of Stock [Line Items]
Conversion of stock, amount converted	$ 17,000
Conversion of stock, period after closing (in years)	10 years