Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue	$ 4,918,118	$ 6,435,278	$ 8,395,378	$ 15,589,111
Cost of revenue	4,425,279	5,319,060	8,290,280	10,711,979
Gross profit	492,839	1,116,218	105,098	4,877,132
Operating expenses
Research and development	176,920	128,117	341,000	224,923
Selling and shipping	227,117	399,249	504,424	912,724
General and administrative	1,632,022	1,968,465	3,368,110	4,208,530
Total operating expenses	2,036,059	2,495,831	4,213,534	5,346,177
Operating loss	(1,543,220)	(1,379,613)	(4,108,436)	(469,045)
Other income (expense):
Interest income	42,063	29,314	88,869	46,274
Interest expense	(126,270)	(119,279)	(240,806)	(240,633)
Total other expense, net	(84,207)	(89,965)	(151,937)	(194,359)
Loss before income tax	(1,627,427)	(1,469,578)	(4,260,373)	(663,404)
Income tax (benefit) expense	(234,697)	(139,052)	(690,697)	108,718
Net loss	$ (1,392,730)	$ (1,330,526)	$ (3,569,676)	$ (772,122)
Basic loss per common share (in dollars per share)	$ (0.21)	$ (0.21)	$ (0.55)	$ (0.12)
Diluted loss per common share (in dollars per share)	$ (0.21)	$ (0.21)	$ (0.55)	$ (0.12)
Weighted average common shares Outstanding-basic (in shares)	6,555,150	6,486,067	6,547,035	6,476,712
Weighted average common shares Outstanding-diluted (in shares)	6,555,150	6,486,067	6,547,035	6,476,712