Segment Reporting (Tables)

6 Months Ended

Jul. 03, 2015

Disclosure Segment Information [Abstract]

Segment Reporting Information, by Segment

Segment information for the three and six months ended July 3, 2015 and July 4, 2014 follows:

Revenues
	Three Months Ended				Six Months Ended
(In thousands)	July 3, 2015		July 4, 2014		July 3, 2015		July 4, 2014
Engineering and Other Scientific	$	59,359	$	55,293	$	119,160	$	111,120
Environmental and Health		20,505		21,281		40,997		41,416
Total revenues	$	79,864	$	76,574	$	160,157	$	152,536

Operating Income
	Three Months Ended				Six Months Ended
(In thousands)	July 3, 2015		July 4, 2014		July 3, 2015		July 4, 2014
Engineering and Other Scientific	$	19,108	$	17,700	$	38,353	$	36,518
Environmental and Health		6,631		7,191		13,095		13,164
Total segment operating income		25,739		24,891		51,448		49,682
Corporate operating expense		(7,034)		(8,807)		(17,715)		(19,504)
Total operating income	$	18,705	$	16,084	$	33,733	$	30,178

Capital Expenditures
	Three Months Ended				Six Months Ended
(In thousands)	July 3, 2015		July 4, 2014		July 3, 2015		July 4, 2014
Engineering and Other Scientific	$	819	$	794	$	1,211	$	1,324
Environmental and Health		47		60		71		115
Total segment capital expenditures		866		854		1,282		1,439
Corporate capital expenditures		221		207		432		537
Total capital expenditures	$	1,087	$	1,061	$	1,714	$	1,976

Depreciation and Amortization
	Three Months Ended				Six Months Ended
(In thousands)	July 3, 2015		July 4, 2014		July 3, 2015		July 4, 2014
Engineering and Other Scientific	$	822	$	868	$	1,926	$	1,741
Environmental and Health		44		49		87		96
Total segment depreciation and amortization		866		917		2,013		1,837
Corporate depreciation and amortization		458		394		692		796
Total depreciation and amortization	$	1,324	$	1,311	$	2,705	$	2,633