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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2026	Sep. 28, 2025	Sep. 27, 2026	Sep. 28, 2025
Stock-Based Compensation
Stock-based compensation			$ 3,277	$ 4,348
Fair value of options vested	$ 600		2,100
General and administrative expenses
Stock-Based Compensation
Stock-based compensation	1,000	$ 1,200	3,300	4,300
Restricted Stock
Stock-Based Compensation
Unrecognized compensation cost related to non-vested awards	3,300		$ 3,300
Unrecognized compensation cost, recognition period			1 year 10 months 24 days
Performance Stock Units
Stock-Based Compensation
Unrecognized compensation cost related to non-vested awards	400		$ 400
Unrecognized compensation cost, recognition period			1 year 10 months 24 days
Milestone Based Options
Stock-Based Compensation
Stock-based compensation	$ 200	200	$ 700	700
Equity Incentive Plan 2019
Stock-Based Compensation
Shares available for issuance	3,006,224		3,006,224
Director \| Restricted Stock
Stock-Based Compensation
Stock-based compensation	$ 200	$ 200	$ 700	$ 600