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SCHEDULE OF OPTIONS ACTIVITY (Details) - $ / shares | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
2015 Equity Incentive Plan [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Beginning balance, Options, Outstanding options | 5,795,395 | 5,525,405
Beginning balance, Weighted- average exercise price, Outstanding options | $ 7.96 | $ 8.08
Options, Granted, fair value | 2,645,146 | 1,490,490
Weighted- average exercise price, Granted, fair value | $ 2.26 | $ 6.53
Options, Exercised | (77,560) | (303,129)
Weighted- average exercise price, Exercised | $ 2.28 | $ 3.20
Options, Expired/forfeited | (2,802,242) | (917,371)
Weighted- average exercise price, Expired/forfeited | $ 6.52 | $ 7.95
Ending balance, Options, Outstanding options | 5,560,739 | 5,795,395
Ending balance, Options, Outstanding options | $ 2.21 | $ 7.96
Options, Non-vested options | 2,507,203 | 2,342,706
Weighted- average exercise price, Non-vested options | $ 1.29 | $ 8.78
2005 Equity Incentive Plan [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Beginning balance, Options, Outstanding options | 260,000 | 316,400
Beginning balance, Weighted- average exercise price, Outstanding options | $ 12.94 | $ 14.15
Options, Expired/forfeited | (135,200) | (56,400)
Weighted- average exercise price, Expired/forfeited | $ 6.80 | $ 19.75
Ending balance, Options, Outstanding options | 124,800 | 260,000
Ending balance, Options, Outstanding options | $ 8.55 | $ 12.94

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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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