STOCKHOLDERS' EQUITY (Details Narrative) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Preferred stock, par value (in dollars per share)	$ 0.001		$ 0.001
Preferred stock, authorized	10,000,000		10,000,000
Common stock, authorized	350,000,000		350,000,000
Common stock, issued	241,221,840		240,462,439
Value of common stock issued during period for stock options exercised	$ 100,107	$ 44,056
Number of stock options exercised (in shares)	276,383
Stock Options [Member]
Value of common stock issued during period for stock options exercised	$ 44,057
Number of stock options exercised (in shares)	144,791
Number of stock options exercised in cashless exercise (in shares)	10,000
Number of common stock issued during period for stock options exercised in cashless exercise (in shares)	9,841