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Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Dec. 28, 2024	Jun. 05, 2025	Jun. 04, 2025	Mar. 11, 2025	Feb. 29, 2024	Feb. 27, 2024
ATM Equity Offering [Line Items]
Proceeds from issuance of common stock, net of issuance costs	$ 0	$ 19,359
Credit Agreement, Amendment No. 1, Warrants
ATM Equity Offering [Line Items]
Shares of common stock called by warrants (in shares)						1,840,503
Common stock called by warrants, percentage of common stock outstanding						6.00%
Warrant exercise price (in dollars per share)						$ 0.01
Warrants and rights outstanding						$ 11,600
Credit Agreement, Amendment No. 3, Warrants
ATM Equity Offering [Line Items]
Shares of common stock called by warrants (in shares)				1,556,323
Common stock called by warrants, percentage of common stock outstanding					5.00%
Warrant exercise price (in dollars per share)				$ 0.01
Warrants and rights outstanding				$ 5,200
ATM Equity Offering Sales Agreement ("ATM Agreement")
ATM Equity Offering [Line Items]
Common Stock, Shares, Sold			1,900,000
Proceeds from issuance of common stock, net of issuance costs			$ 19,300
Payments of Stock Issuance Costs			$ 1,100
BofA Securities, Inc. ("BofA") | ATM Equity Offering Sales Agreement ("ATM Agreement")
ATM Equity Offering [Line Items]
Commission percentage of aggregate gross sale proceeds								3.00%
BofA Securities, Inc. ("BofA") | ATM Equity Offering Sales Agreement ("ATM Agreement")
ATM Equity Offering [Line Items]
Common Stock, Value Of Shares, Maximum							$ 100,000

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