Consolidated Income Statements - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues	$ 34,930	$ 21,682	$ 97,701	$ 72,422
Cost of sales	22,890	17,298	67,649	55,301
Gross profit	12,040	4,384	30,052	17,121
Operating expenses:
Selling and marketing	901	958	3,037	2,972
General and administrative	3,121	1,524	5,835	4,216
Total operating expenses	4,022	2,482	8,872	7,188
Operating income	8,018	1,902	21,180	9,933
Interest expense	(296)	(157)	(919)	(600)
Income before income taxes	7,722	1,745	20,261	9,333
Income tax expense	2,933	663	7,699	3,547
Net income	$ 4,789	$ 1,082	$ 12,562	$ 5,786
Net income per common share - Basic	$ 0.14	$ 0.03	$ 0.38	$ 0.18
Net income per common share - Diluted	$ 0.14	$ 0.03	$ 0.37	$ 0.17
Weighted average number of shares outstanding - Basic	33,873,479	32,639,429	33,265,470	32,487,230
Weighted average number of shares outstanding - Diluted	35,297,585	33,856,045	34,341,930	34,071,982