Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenue	$ 24,334,331	$ 41,128,639
Cost of revenue	19,156,201	23,528,427
Gross profit	5,178,130	17,600,212
Operating expenses
Research and development	606,618	437,157
Selling and shipping	1,620,089	1,404,938
General and administrative	8,205,942	8,539,244
Total operating expenses	10,432,649	10,381,339
Operating (loss) income	(5,254,519)	7,218,873
Other income (expense):
Interest income	159,953	80,518
Interest expense	(463,017)	(106,280)
Other income (expense)		2,244
Total other expense, net	(303,064)	(23,518)
(Loss) income before income tax	(5,557,583)	7,195,355
Income tax (benefit) expense	(356,562)	1,933,944
Net (loss) income	$ (5,201,021)	$ 5,261,411
Basic (loss) income per common share (in dollars per share)	$ (0.80)	$ 0.83
Diluted (loss) income per common share (in dollars per share)	$ (0.80)	$ 0.82
Weighted average common shares Outstanding-basic (in shares)	6,495,597	6,375,848
Weighted average common shares Outstanding-diluted (in shares)	6,495,597	6,387,464