Segment Reporting (Tables)

6 Months Ended

Jul. 03, 2020

Segment Reporting [Abstract]

Segment Reporting Information, by Segment

Segment information for the three and six months ended July 3, 2020 and June 28, 2019 follows:

Revenues

	Three Months Ended				Six Months Ended
(In thousands)	July 3, 2020		June 28, 2019		July 3, 2020		June 28, 2019
Engineering and Other Scientific	$	72,123	$	86,820	$	157,009	$	167,074
Environmental and Health		19,922		19,686		40,989		38,463
Total revenues	$	92,045	$	106,506	$	197,998	$	205,537

Operating Income

	Three Months Ended						Six Months Ended
(In thousands)	July 3, 2020			June 28, 2019			July 3, 2020			June 28, 2019
Engineering and Other Scientific	$	20,807		$	29,252		$	47,448		$	55,226
Environmental and Health		7,049			7,039			14,302			13,235
Total segment operating income		27,856			36,291			61,750			68,461
Corporate operating expense		(18,736	)		(11,468	)		(16,642	)		(27,884	)
Total operating income	$	9,120		$	24,823		$	45,108		$	40,577

Capital Expenditures

	Three Months Ended				Six Months Ended
(In thousands)	July 3, 2020		June 28, 2019		July 3, 2020		June 28, 2019
Engineering and Other Scientific	$	901	$	929	$	1,467	$	2,707
Environmental and Health		19		13		81		56
Total segment capital expenditures		920		942		1,548		2,763
Corporate capital expenditures		724		5,958		1,135		10,478
Total capital expenditures	$	1,644	$	6,900	$	2,683	$	13,241

Depreciation and Amortization

	Three Months Ended				Six Months Ended
(In thousands)	July 3, 2020		June 28, 2019		July 3, 2020		June 28, 2019
Engineering and Other Scientific	$	1,068	$	1,170	$	2,205	$	2,291
Environmental and Health		46		48		93		93
Total segment depreciation and    amortization		1,114		1,218		2,298		2,384
Corporate depreciation and amortization		587		424		1,189		848
Total depreciation and amortization	$	1,701	$	1,642	$	3,487	$	3,232