Segment Reporting (Tables)

9 Months Ended

Sep. 27, 2024

Segment Reporting [Abstract]

Segment Reporting Information, by Segment

Segment information for the three and nine months ended September 27, 2024 and September 29, 2023 follows:

Revenues

	Three Months Ended				Nine Months Ended
(In thousands)	September 27, 2024		September 29, 2023		September 27, 2024		September 29, 2023
Engineering and Other Scientific	$	115,244	$	110,857	$	355,193	$	344,552
Environmental and Health		21,035		22,479		66,555		69,314
Total revenues	$	136,279	$	133,336	$	421,748	$	413,866

Operating Income

	Three Months Ended						Nine Months Ended
(In thousands)	September 27, 2024			September 29, 2023			September 27, 2024			September 29, 2023
Engineering and Other Scientific	$	40,292		$	38,734		$	132,687		$	121,064
Environmental and Health		7,547			7,475			23,042			22,550
Total segment operating income		47,839			46,209			155,729			143,614
Corporate operating expense		(21,992	)		(12,276	)		(63,425	)		(50,686	)
Total operating income	$	25,847		$	33,933		$	92,304		$	92,928

Capital Expenditures

	Three Months Ended				Nine Months Ended
(In thousands)	September 27, 2024		September 29, 2023		September 27, 2024		September 29, 2023
Engineering and Other Scientific	$	887	$	541	$	1,769	$	3,210
Environmental and Health		-		25		74		139
Total segment capital expenditures		887		566		1,843		3,349
Corporate capital expenditures		1,339		1,248		2,899		13,893
Total capital expenditures	$	2,226	$	1,814	$	4,742	$	17,242

Depreciation and Amortization

	Three Months Ended				Nine Months Ended
(In thousands)	September 27, 2024		September 29, 2023		September 27, 2024		September 29, 2023
Engineering and Other Scientific	$	1,735	$	1,750	$	5,128	$	4,428
Environmental and Health		50		53		154		155
Total segment depreciation and    amortization		1,785		1,803		5,282		4,583
Corporate depreciation and amortization		604		558		1,917		1,952
Total depreciation and amortization	$	2,389	$	2,361	$	7,199	$	6,535