Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2022

Segment Reporting [Abstract]

Segment Reporting Information, by Segment

Segment information for the three and nine months ended September 30, 2022 and October 1, 2021 follows:

Revenues

	Three Months Ended				Nine Months Ended
(In thousands)	September 30, 2022		October 1, 2021		September 30, 2022		October 1, 2021
Engineering and Other Scientific	$	107,403	$	97,100	$	321,168	$	288,848
Environmental and Health		19,776		19,305		64,770		63,915
Total revenues	$	127,179	$	116,405	$	385,938	$	352,763

Operating Income

	Three Months Ended						Nine Months Ended
(In thousands)	September 30, 2022			October 1, 2021			September 30, 2022			October 1, 2021
Engineering and Other Scientific	$	39,385		$	36,676		$	117,907		$	108,646
Environmental and Health		6,378			5,851			21,059			21,265
Total segment operating income		45,763			42,527			138,966			129,911
Corporate operating expense		(8,950	)		(10,408	)		(20,159	)		(44,362	)
Total operating income	$	36,813		$	32,119		$	118,807		$	85,549

Certain operating expenses are excluded from the Company’s measure of segment operating income. These expenses include costs associated with its human resources, finance, information technology, and business development groups; the deferred compensation expense/benefit due to the change in value of assets associated with its deferred compensation plan; stock-based compensation associated with restricted stock unit and stock option awards; and the change in its allowance for contract losses and doubtful accounts.

Capital Expenditures

	Three Months Ended				Nine Months Ended
(In thousands)	September 30, 2022		October 1, 2021		September 30, 2022		October 1, 2021
Engineering and Other Scientific	$	870	$	563	$	3,050	$	1,981
Environmental and Health		48		57		104		136
Total segment capital expenditures		918		620		3,154		2,117
Corporate capital expenditures		1,172		778		6,387		3,086
Total capital expenditures	$	2,090	$	1,398	$	9,541	$	5,203

Certain capital expenditures associated with the Company’s corporate cost centers and the related depreciation are excluded from the Company’s segment information.

Depreciation and Amortization

	Three Months Ended				Nine Months Ended
(In thousands)	September 30, 2022		October 1, 2021		September 30, 2022		October 1, 2021
Engineering and Other Scientific	$	1,108	$	1,089	$	3,301	$	3,074
Environmental and Health		41		49		124		141
Total segment depreciation and    amortization		1,149		1,138		3,425		3,215
Corporate depreciation and amortization		574		507		1,799		1,728
Total depreciation and amortization	$	1,723	$	1,645	$	5,224	$	4,943