Computation of Basic and Diluted Net Loss Per Share - Reconciliation of Numerator and Denominator of Basic and Diluted Net Loss Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Numerator:
Net loss	$ (1,933)	$ (1,754)	$ (8,076)	$ (6,610)
Denominator:
Weighted average shares of common stock (basic)	16,581	16,231	16,374	16,089
Weighted average shares of common stock (diluted)	16,581	16,231	16,374	16,089
Per share data:
Basic net loss per share	$ (0.12)	$ (0.11)	$ (0.49)	$ (0.41)
Diluted net loss per share	$ (0.12)	$ (0.11)	$ (0.49)	$ (0.41)