Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue	$ 9,650,617	$ 5,003,433
Cost of revenue	5,479,482	3,470,322
Gross profit	4,171,135	1,533,111
Operating expenses
Research and development	70,335	81,875
Selling and shipping	285,416	257,791
General and administrative	2,098,595	1,726,100
Total operating expenses	2,454,346	2,065,766
Operating income/(loss)	1,716,789	(532,655)
Other income (expense)
Interest income	8,575	6,746
Interest expense	(17,637)	(19,993)
Other income	439	4,448
Total other (expense)	(8,623)	(8,799)
Income/(loss) before income tax (expense)/benefit	1,708,166	(541,454)
Income tax (expense)/benefit	(684,132)	203,690
Net income/(loss)	$ 1,024,034	$ (337,764)
Basic income/(loss) per common share (in dollars per share)	$ 0.16	$ (0.05)
Diluted income/(loss) per common share (in dollars per share)	$ 0.16	$ (0.05)
Weighted average common shares outstanding- basic (in shares)	6,353,269	6,213,142
Net effect of potential common share issuance (in shares)	32,286
Weighted average common shares outstanding- diluted (in shares)	6,385,555	6,213,142