14. SEGMENT AND GEOGRAPHIC INFORMATION (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net sales, amount	$ 47,988,549	$ 37,614,456
Net sales, % of total	100.00%	100.00%
North America
Net sales, amount	$ 47,116,632	$ 36,741,262
Net sales, % of total	98.20%	97.70%
Outside North America
Net sales, amount	$ 871,917	$ 873,194
Net sales, % of total	1.80%	2.30%