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Goodwill Reported By segment (Detail) - USD ($) $ in Thousands	Jan. 03, 2025	Dec. 29, 2023
Goodwill Reported By Segment [Line Items]
Goodwill	$ 8,607	$ 8,607
Environmental and Health
Goodwill Reported By Segment [Line Items]
Goodwill	8,099	8,099
Engineering and Other Scientific
Goodwill Reported By Segment [Line Items]
Goodwill	$ 508	$ 508

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- Definition

Goodwill Reported By Segment [Line Items]

+ References

No definition available.

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- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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