INTANGIBLE ASSETS (Schedule of changes in the carrying amount of intangible assets) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Summary of changes the carrying amount of finite lived intangible assets of Patents and Trademarks
Beginning balance	$ 231,123	$ 262,819
Additions during the period	19,303	16,737
Amortization	(37,807)	(48,433)
Ending balance	$ 212,619	$ 231,123