Revenue Recognition (Tables)

3 Months Ended

Apr. 02, 2021

Revenue Recognition [Abstract]

Summary of Revenues

The following table discloses the percentage of the Company’s revenue generated from time and materials contracts:  

	Three Months Ended
	April 2, 2021			April 3, 2020
Engineering & other scientific		61	%		66	%
Environmental and health		18	%		19	%
Total time and materials revenues		79	%		85	%

The following table discloses the percentage of the Company’s revenue generated from fixed price contracts:  

	Three Months Ended
	April 2, 2021			April 3, 2020
Engineering & other scientific		20	%		14	%
Environmental and health		1	%		1	%
Total fixed price revenues		21	%		15	%