Loss Per Share (Narrative) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Potential common shares excluded from the calculation of diluted loss per share	711,000	1,024,173	1,058,529	1,974,484
Stock options and RSUs [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Potential common shares excluded from the calculation of diluted loss per share	2,801,823	2,204,546	2,751,020	2,192,755
Series B-1 preferred stock [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Common Shares issuable on an if-converted basis	6,089,333	6,089,333	6,089,333	6,089,333