Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue	$ 19,646,652	$ 24,334,331
Cost of revenue	16,850,077	19,156,201
Gross profit	2,796,575	5,178,130
Operating expenses
Research and development	597,456	606,618
Selling and shipping	898,338	1,620,089
General and administrative	6,285,496	8,205,942
Total operating expenses	7,781,290	10,432,649
Operating loss	(4,984,715)	(5,254,519)
Other income (expense):
Interest income	142,579	159,953
Interest expense	(482,844)	(463,017)
Other Income	411,230
Total other income (expense), net	70,965	(303,064)
Loss before income tax	(4,913,750)	(5,557,583)
Income tax expense (benefit)	1,413,908	(356,562)
Net loss	$ (6,327,658)	$ (5,201,021)
Basic loss per common share (in dollars per share)	$ (0.96)	$ (0.80)
Diluted loss per common share (in dollars per share)	$ (0.96)	$ (0.80)
Outstanding-basic (in shares)	6,562,141	6,495,597
Outstanding-diluted (in shares)	6,562,141	6,495,597