Consolidated Income Statements - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues	$ 28,167	$ 22,103
Cost of sales	20,645	16,578
Gross profit	7,522	5,525
Operating expenses:
Selling and marketing	1,117	960
General and administrative	1,386	1,295
Total operating expenses	2,503	2,255
Operating income	5,019	3,270
Interest expense	271	207
Income before income taxes	4,748	3,063
Income tax expense	1,804	1,170
Net income	$ 2,944	$ 1,893
Net income per common share - Basic	$ 0.09	$ 0.06
Net income per common share - Diluted	$ 0.09	$ 0.06
Weighted average number of shares outstanding - Basic	32,888,659	32,333,443
Weighted average number of shares outstanding - Diluted	33,944,876	34,280,385