Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenue	$ 16,920,219	$ 19,646,652
Cost of revenue	14,037,813	16,850,077
Gross profit	2,882,406	2,796,575
Operating expenses
Research and development	372,648	597,456
Selling and shipping	580,468	898,338
Impairment charge	3,599,322
General and administrative	6,153,925	6,285,496
Total operating expenses	10,706,363	7,781,290
Operating loss	(7,823,957)	(4,984,715)
Other income (expense):
Interest income	62,667	142,579
Interest expense	(444,337)	(482,844)
Other income	603,320	411,230
Total other income, net	221,650	70,965
Loss before income tax	(7,602,307)	(4,913,750)
Income tax (benefit) expense	(1,527,355)	1,413,908
Net loss	$ (6,074,952)	$ (6,327,658)
Basic loss per common share (in dollars per share)	$ (0.91)	$ (0.96)
Diluted loss per common share (in dollars per share)	$ (0.91)	$ (0.96)
Outstanding-basic (in shares)	6,640,272	6,562,141
Outstanding-diluted (in shares)	6,640,272	6,562,141