CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Contract revenues	$ 345,611	$ 300,129
Contract costs	309,858	274,389
Gross profit	35,753	25,740
Selling, general and administrative expenses	28,280	25,779
Amortization of intangible assets	117	188
Gain on sale of property and equipment	(1,051)	(707)
Income from operations	8,407	480
Other income (expense)
Interest income	0	1
Interest expense	(721)	(514)
Other, net	249	874
Income before provision for income taxes	7,935	841
Income tax expense (benefit)	2,291	(359)
Net income	$ 5,644	$ 1,200
Income per common share:
- Basic (in dollars per share)	$ 0.35	$ 0.07
- Diluted (in dollars per share)	$ 0.34	$ 0.07
Weighted average number of common shares and potential common shares outstanding:
- Basic (in shares)	16,321	16,161
- Diluted (in shares)	16,520	16,452
Net income	$ 5,644	$ 1,200
Other comprehensive income (loss):
Foreign currency translation adjustment	(17)	(49)
Other comprehensive income (loss)	(17)	(49)
Total comprehensive income	$ 5,627	$ 1,151