Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Revenue	$ 139,473	$ 125,032
Cost of revenue	118,195	107,353
Gross profit	21,278	17,679
General and administrative expenses	16,127	13,859
Sales and marketing expenses	1,989	725
Restructuring charges	1,119	435
Gain on change in fair value of contingent consideration, net	50	2,552
Operating income	2,093	5,212
Interest expense	(1,598)	(686)
Other expense	14	164
Income before income tax expense	481	4,362
Income tax expense	147	1,730
Net income	$ 334	$ 2,632
Basic weighted average shares outstanding (in shares)	16,672	16,619
Diluted weighted average shares outstanding (in shares)	16,703	16,713
Per common share data:
Basic earnings per share (in dollars per share)	$ 0.02	$ 0.16
Diluted earnings per share (in dollars per share)	$ 0.02	$ 0.16