10. SEGMENT AND GEOGRAPHIC INFORMATION (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Net sales, amount	$ 37,614,456	$ 32,323,482
Net sales, % of total	100.00%	100.00%
North America
Net sales, amount	$ 36,741,262	$ 31,687,051
Net sales, % of total	97.70%	98.00%
Outside North America
Net sales, amount	$ 873,194	$ 636,432
Net sales, % of total	2.30%	2.00%