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		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Numerator:
Net loss	$ (2,679)	$ (2,766)	$ (6,143)	$ (4,856)
Denominator:
Weighted average shares of common stock (basic)	16,287	16,036	16,270	16,018
Weighted average shares of common stock (diluted)	16,287	16,036	16,270	16,018
Per share data:
Basic net loss per share	$ (0.16)	$ (0.17)	$ (0.38)	$ (0.3)
Diluted net loss per share	$ (0.16)	$ (0.17)	$ (0.38)	$ (0.3)