Disaggregation of Sales, Geographic Sales and Product Sales - Net Sales by Geographic Areas (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 27, 2024	Sep. 29, 2023	Sep. 27, 2024	Sep. 29, 2023
Geographic And Sales [Line Items]
Total net sales		$ 88,590	$ 80,308	$ 264,951	$ 246,142
Geographic Distribution, Domestic [Member]
Geographic And Sales [Line Items]
Total net sales		4,681	4,164	15,015	13,061
Geographic Distribution, Foreign [Member]
Geographic And Sales [Line Items]
Total net sales		83,909	76,144	249,936	233,081
Geographic Distribution, Foreign [Member] | China [Member]
Geographic And Sales [Line Items]
Total net sales		51,830	48,287	153,774	144,716
Geographic Distribution, Foreign [Member] | JAPAN
Geographic And Sales [Line Items]
Total net sales		10,534	9,175	30,875	28,526
Geographic Distribution, Foreign [Member] | Other [Member]
Geographic And Sales [Line Items]
Total net sales	[1]	$ 21,545	$ 18,682	$ 65,287	$ 59,839

[1] No other location individually exceeds 10% of the total sales.