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10. STOCK COMPENSATION (Tables) | 12 Months Ended
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Sep. 30, 2019
Share-based Payment Arrangement [Abstract] |
Employees and non-employees stock compensation |
|  | Year Ended September 30, |
|  | 2019 |  |  | 2018 |
Employees |  | $ | 4,428,174 |  |  | $ | 2,743,267 |
Non-employees |  | $ | 856,025 |  |  | $ | 530,736 |
Assumptions for Option Pricing |
|  | 2019 |  |  | 2018 |
Expected stock price volatility |  |  | 87.67 – 92.84 | % |  |  | 89.90 – 94.32 | %
Risk-free interest rate |  |  | 1.62 – 2.82 | % |  |  | 2.30 – 3.04 | %
Expected life of options |  |  | 9.67 – 9.68 Years |  |  |  | 9.67 – 9.70 Years |
Expected dividend yield |  |  | - |  |  |  | - |
Stock Option Plans | Non-Qualified and Incentive Stock Option Plans
|  | Outstanding |  |  | Exercisable |
|  |  |  |  | Weighted Average |  |  | Weighted Ave Remaining |  |  |  |  |  |  |  |  | Weighted |  |  | Weighted Ave Remaining |  |  |  |
|  | Number of Shares |  |  | Exercise Price |  |  | Contractual Term (Years) |  |  | Aggregate Intrinsic Value |  |  | Number of Shares |  |  | Average Exercise Price |  |  | Contractual Term (Years) |  |  | Aggregate Intrinsic Value |
Outstanding at September 30, 2017 |  |  | 1,239,844 |  |  | $ | 16.44 |  |  |  | 8.50 |  |  | $ | 1,400 |  |  |  | 275,982 |  |  | $ | 53.53 |  |  |  | 4.91 |  |  | $ | 0 |
Vested |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 334,111 |  |  | $ | 7.63 |  |  |  |  |  |  |  |  |
Granted |  |  | 1,958,108 |  |  | $ | 2.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited |  |  | 5,426 |  |  | $ | 3.79 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expired |  |  | 32,399 |  |  | $ | 67.73 |  |  |  |  |  |  |  |  |  |  |  | 32,399 |  |  | $ | 67.73 |  |  |  |  |  |  |  |  |
Cancelled |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at September 30, 2018 |  |  | 3,160,127 |  |  | $ | 7.30 |  |  |  | 8.88 |  |  | $ | 4,761,973 |  |  |  | 577,694 |  |  | $ | 26.18 |  |  |  | 6.74 |  |  | $ | 604,763 |
Vested |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 945,359 |  |  | $ | 2.56 |  |  |  |  |  |  |  |  |
Granted |  |  | 3,271,362 |  |  | $ | 5.40 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised (a) |  |  | 65,997 |  |  | $ | 2.28 |  |  |  |  |  |  |  |  |  |  |  | 65,997 |  |  | $ | 2.28 |  |  |  |  |  |  |  |  |
Forfeited |  |  | 82,461 |  |  | $ | 17.89 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expired (b) |  |  | 64,815 |  |  | $ | 71.86 |  |  |  |  |  |  |  |  |  |  |  | 64,815 |  |  | $ | 71.86 |  |  |  |  |  |  |  |  |
Cancelled |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at September 30, 2019 |  |  | 6,218,216 |  |  | $ | 5.54 |  |  |  | 8.88 |  |  | $ | 29,562,594 |  |  |  | 1,392,241 |  |  | $ | 9.15 |  |  |  | 7.68 |  |  | $ | 7,869,555 |
Schedule of non-vested options |
|  | Number of Options |  |  | Weighted Average Grant Date Fair Value |
Unvested at October 1, 2017 |  |  | 963,862 |  |  | $ | 4.91 |
Vested |  |  | (334,111 | ) |  |  |  |
Granted |  |  | 1,958,108 |  |  |  |  |
Forfeited |  |  | (5,426 | ) |  |  |  |
Unvested at September 30, 2018 |  |  | 2,582,433 |  |  | $ | 2.48 |
Vested |  |  | (945,359 | ) |  |  |  |
Granted |  |  | 3,271,362 |  |  |  |  |
Forfeited |  |  | (82,461 | ) |  |  |  |
Unvested at September 30, 2019 |  |  | 4,825,975 |  |  | $ | 3.79 |
Schedule of restricted stock units |
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Unvested at September 30, 2017 |  |  | 468,000 |  |  | $ | 13.75 |
Vested |  |  | (156,000 | ) |  |  |  |
Unvested at September 30, 2018 |  |  | 312,000 |  |  | $ | 13.75 |
Forfeited |  |  | (7,500 | ) |  |  |  |
Vested |  |  | - |  |  |  |  |
Unvested at September 30, 2019 |  |  | 304,500 |  |  | $ | 13.75 |

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