Segment Reporting (Tables)

9 Months Ended

Oct. 02, 2020

Segment Reporting [Abstract]

Segment Reporting Information, by Segment

Segment information for the three and nine months ended October 2, 2020 and September 27, 2019 follows:

Revenues

	Three Months Ended				Nine Months Ended
(In thousands)	October 2, 2020		September 27, 2019		October 2, 2020		September 27, 2019
Engineering and Other Scientific	$	79,230	$	83,060	$	236,239	$	250,134
Environmental and Health		19,433		18,488		60,422		56,951
Total revenues	$	98,663	$	101,548	$	296,661	$	307,085

Operating Income

	Three Months Ended						Nine Months Ended
(In thousands)	October 2, 2020			September 27, 2019			October 2, 2020			September 27, 2019
Engineering and Other Scientific	$	25,952		$	27,925		$	73,400		$	83,151
Environmental and Health		6,449			6,175			20,751			19,410
Total segment operating income		32,401			34,100			94,151			102,561
Corporate operating expense		(11,994	)		(10,916	)		(28,636	)		(38,800	)
Total operating income	$	20,407		$	23,184		$	65,515		$	63,761

Capital Expenditures

	Three Months Ended				Nine Months Ended
(In thousands)	October 2, 2020		September 27, 2019		October 2, 2020		September 27, 2019
Engineering and Other Scientific	$	594	$	664	$	2,061	$	3,371
Environmental and Health		22		17		103		73
Total segment capital expenditures		616		681		2,164		3,444
Corporate capital expenditures		1,005		4,197		2,140		14,675
Total capital expenditures	$	1,621	$	4,878	$	4,304	$	18,119

Depreciation and Amortization

	Three Months Ended				Nine Months Ended
(In thousands)	October 2, 2020		September 27, 2019		October 2, 2020		September 27, 2019
Engineering and Other Scientific	$	1,043	$	1,179	$	3,248	$	3,470
Environmental and Health		48		55		141		148
Total segment depreciation and    amortization		1,091		1,234		3,389		3,618
Corporate depreciation and amortization		598		438		1,787		1,286
Total depreciation and amortization	$	1,689	$	1,672	$	5,176	$	4,904