OPTIONS AND WARRANTS TO PURCHASE COMMON STOCK (Details 4) - $ / shares | 3 Months Ended | |
Mar. 31, 2019 | Dec. 31, 2018 |
Options outstanding, number outstanding (in shares) | 55,526,568 | 54,866,845 |
Options outstanding, weighted average remaining contractual life (Year) | 6 years 9 months 18 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.29 | |
Options exercisable, number exercisable (in shares) | 47,501,568 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.32 | |
Exercise Price 1 [Member] | | |
Options outstanding, number outstanding (in shares) | 1,000,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 9 years 9 months 18 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.05 | |
Options exercisable, number exercisable (in shares) | 0 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.05 | |
Exercise Price 2 [Member] | | |
Options outstanding, number outstanding (in shares) | 35,808,334 | |
Options outstanding, weighted average remaining contractual life (Year) | 8 years 3 months 18 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.06 | |
Options exercisable, number exercisable (in shares) | 28,808,334 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.06 | |
Exercise Price 3 [Member] | | |
Options outstanding, number outstanding (in shares) | 545,289 | |
Options outstanding, weighted average remaining contractual life (Year) | 8 years 8 months 12 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.075 | |
Options exercisable, number exercisable (in shares) | 545,289 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.075 | |
Exercise Price 4 [Member] | | |
Options outstanding, number outstanding (in shares) | 377,777 | |
Options outstanding, weighted average remaining contractual life (Year) | 4 years 4 months 24 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.11 | |
Options exercisable, number exercisable (in shares) | 352,777 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.11 | |
Exercise Price 5 [Member] | | |
Options outstanding, number outstanding (in shares) | 3,173,611 | |
Options outstanding, weighted average remaining contractual life (Year) | 4 years 1 month 6 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.12 | |
Options exercisable, number exercisable (in shares) | 3,173,611 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.12 | |
Exercise Price 6 [Member] | | |
Options outstanding, number outstanding (in shares) | 500,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 2 years 4 months 24 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.16 | |
Options exercisable, number exercisable (in shares) | 500,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.16 | |
Exercise Price 7 [Member] | | |
Options outstanding, number outstanding (in shares) | 81,395 | |
Options outstanding, weighted average remaining contractual life (Year) | 4 years 10 months 24 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.21 | |
Options exercisable, number exercisable (in shares) | 81,395 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.21 | |
Exercise Price 8 [Member] | | |
Options outstanding, number outstanding (in shares) | 100,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 1 year 6 months | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.22 | |
Options exercisable, number exercisable (in shares) | 100,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.22 | |
Exercise Price 9 [Member] | | |
Options outstanding, number outstanding (in shares) | 1,066,155 | |
Options outstanding, weighted average remaining contractual life (Year) | 2 years 1 month 6 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.24 | |
Options exercisable, number exercisable (in shares) | 1,066,155 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.24 | |
Exercise Price 10 [Member] | | |
Options outstanding, number outstanding (in shares) | 2,087,500 | |
Options outstanding, weighted average remaining contractual life (Year) | 3 years 6 months | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.25 | |
Options exercisable, number exercisable (in shares) | 2,087,500 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.25 | |
Exercise Price 11 [Member] | | |
Options outstanding, number outstanding (in shares) | 35,595 | |
Options outstanding, weighted average remaining contractual life (Year) | 4 years | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.27 | |
Options exercisable, number exercisable (in shares) | 35,595 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.27 | |
Exercise Price 12 [Member] | | |
Options outstanding, number outstanding (in shares) | 474,815 | |
Options outstanding, weighted average remaining contractual life (Year) | 5 years 1 month 6 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.28 | |
Options exercisable, number exercisable (in shares) | 474,815 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.28 | |
Exercise Price 13 [Member] | | |
Options outstanding, number outstanding (in shares) | 234,506 | |
Options outstanding, weighted average remaining contractual life (Year) | 3 years 10 months 24 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.285 | |
Options exercisable, number exercisable (in shares) | 234,506 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.285 | |
Exercise Price 14 [Member] | | |
Options outstanding, number outstanding (in shares) | 81,522 | |
Options outstanding, weighted average remaining contractual life (Year) | 1 year 9 months 18 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.30 | |
Options exercisable, number exercisable (in shares) | 81,522 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.30 | |
Exercise Price 15 [Member] | | |
Options outstanding, number outstanding (in shares) | 200,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 5 years 10 months 24 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.66 | |
Options exercisable, number exercisable (in shares) | 200,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.66 | |
Exercise Price 16 [Member] | | |
Options outstanding, number outstanding (in shares) | 150,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 5 years 10 months 24 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.68 | |
Options exercisable, number exercisable (in shares) | 150,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.68 | |
Exercise Price 17 [Member] | | |
Options outstanding, number outstanding (in shares) | 100,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 3 months 18 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.70 | |
Options exercisable, number exercisable (in shares) | 100,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.70 | |
Exercise Price 18 [Member] | | |
Options outstanding, number outstanding (in shares) | 488,356 | |
Options outstanding, weighted average remaining contractual life (Year) | 6 years 1 month 6 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.73 | |
Options exercisable, number exercisable (in shares) | 488,356 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.73 | |
Exercise Price 19 [Member] | | |
Options outstanding, number outstanding (in shares) | 3,104,653 | |
Options outstanding, weighted average remaining contractual life (Year) | 2 years 10 months 24 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.83 | |
Options exercisable, number exercisable (in shares) | 3,104,653 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.83 | |
Exercise Price 20 [Member] | | |
Options outstanding, number outstanding (in shares) | 975,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 5 years 2 months 12 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 0.84 | |
Options exercisable, number exercisable (in shares) | 975,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 0.84 | |
Exercise Price 21 [Member] | | |
Options outstanding, number outstanding (in shares) | 300,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 4 years 4 months 24 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 1.10 | |
Options exercisable, number exercisable (in shares) | 300,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 1.10 | |
Exercise Price 22 [Member] | | |
Options outstanding, number outstanding (in shares) | 300,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 4 years 2 months 12 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 1.15 | |
Options exercisable, number exercisable (in shares) | 300,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 1.15 | |
Exercise Price 23 [Member] | | |
Options outstanding, number outstanding (in shares) | 65,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 4 years 2 months 12 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 1.35 | |
Options exercisable, number exercisable (in shares) | 65,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 1.35 | |
Exercise Price 24 [Member] | | |
Options outstanding, number outstanding (in shares) | 300,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 3 years 2 months 12 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 1.55 | |
Options exercisable, number exercisable (in shares) | 300,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 1.55 | |
Exercise Price 25 [Member] | | |
Options outstanding, number outstanding (in shares) | 3,077,060 | |
Options outstanding, weighted average remaining contractual life (Year) | 3 years 7 months 6 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 1.66 | |
Options exercisable, number exercisable (in shares) | 3,077,060 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 1.66 | |
Exercise Price 26 [Member] | | |
Options outstanding, number outstanding (in shares) | 900,000 | |
Options outstanding, weighted average remaining contractual life (Year) | 2 years 4 months 24 days | |
Options outstanding, weighted average exercise price (in dollars per share) | $ 1.90 | |
Options exercisable, number exercisable (in shares) | 900,000 | |
Options exercisable, weighted average exercise price (in dollars per share) | $ 1.90 | |