Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue	$ 6,036,360	$ 3,468,675
Cost of revenue	4,100,836	3,856,417
Gross profit	1,935,524	(387,742)
Operating expenses
Research and development	113,828	164,080
Selling and shipping	165,777	277,306
General and administrative	1,547,758	1,735,974
Total operating expenses	1,827,363	2,177,360
Operating income (loss)	108,161	(2,565,102)
Other income (expense):
Interest income	24,902	46,806
Interest expense	(116,038)	(114,651)
Other Income (expense)	110,809
Total other income (expense), net	19,673	(67,845)
Income (loss) before income tax	127,834	(2,632,947)
Income tax (benefit)	(1,530,644)	(456,000)
Net income (loss)	$ 1,658,478	$ (2,176,947)
Basic income (loss) per common share (in dollars per share)	$ 0.25	$ (0.33)
Diluted income (loss) per common share (in dollars per share)	$ 0.25	$ (0.33)
Weighted average common shares Outstanding-basic (in shares)	6,626,036	6,539,120
Weighted average common shares Outstanding-diluted (in shares)	6,626,036	6,539,120