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5. EQUITY TRANSACTIONS (Details Narrative) - USD ($) |  | 1 Months Ended | 3 Months Ended | 4 Months Ended | 6 Months Ended | 7 Months Ended | 8 Months Ended | 9 Months Ended | 10 Months Ended | 11 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 03, 2020 | Apr. 30, 2019 | Jun. 30, 2020 | May 31, 2020 | Sep. 30, 2020 | Oct. 14, 2019 | Oct. 30, 2020 | Dec. 13, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Jan. 31, 2020 | Jan. 16, 2020 | Feb. 28, 2021 | Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Proceeds from issuance of common stock and warrants |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,260,869 | $ 12,159,508 |
Reverse stock split |  |  |  |  |  | 1-for-15 reveerse stock split |  |  |  |  |  |  |  |  |  |
Stock based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 779,421 | 843,998 |
Payments to satify tax withholding |  |  |  |  |  |  |  |  |  |  |  |  |  | 132,527 | 40,938 |
Unrecognized compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,668,000 |  |
Weighted average remaining vesting period |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 years 5 months 9 days |  |
2020 Stock Incentive Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares authorized |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,842,556 |  |
2010 Stock Incentive Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares authorized |  |  |  |  |  |  |  |  |  |  |  |  |  | 211,333 |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 175,000 | $ 678,028 |
Nonvested RSU's outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Restricted Stock Units (RSUs) [Member] | Non-Employee Directors Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued for compensation, value | $ 35,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RSU's granted | 24,822 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Grant date fair value per share | $ 1.41 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercised |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 2,700,000 |
Warrants issued, shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 4,432,585 |
Warrant exercise price |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5.23 | $ 5.21 | $ 27
Grant date fair value per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.79 |
Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,011,860 |  |
Option exercise price |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.71 |  |
Stock based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 602,921 | $ 165,970 |
Stock issued for exercise of options |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,896 |  |
Stock Options [Member] | 2020 Stock Incentive Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted |  |  |  | 521,476 |  |  |  |  |  |  |  |  |  |  |  |
Options granted |  |  |  | 521,476 |  |  |  |  |  |  |  |  |  |  |  |
Stock Options [Member] | 2020 Stock Incentive Plan | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted |  |  |  |  |  |  | 239,122 |  |  |  |  |  |  |  |  |
Non Employee Directors [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RSU's exchanged for common stock, RSU's exchanged |  |  | 29,866 |  | 29,866 |  |  |  | 32,189 |  |  |  |  | 32,189 |  |
RSU's exchanged for common stock, Common stock issued |  |  | 29,866 |  | 29,866 |  |  |  | 32,189 |  |  |  |  | 32,189 |  |
Stock cancelled in exchange for withholding tax |  |  | 11,947 |  | 11,947 |  |  |  | 12,876 |  |  |  |  | 12,875 |  |
Payments to satify tax withholding |  |  | $ 24,251 |  | $ 16,128 |  |  |  | $ 31,802 |  |  |  |  | $ 26,136 |  |
Restricted stock granted, value |  | $ 35,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non Employee Directors [Member] | Restricted Stock Units (RSUs) [Member] | 2010 Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RSU's granted | 23,893 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investor relations consultant [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock based compensation expense |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,500 |  |
Restricted stock granted, shares |  |  |  |  |  |  |  |  |  |  |  |  | 7,758 |  |  |
Restricted stock granted, value |  |  |  |  |  |  |  |  |  |  |  |  | $ 18,000 |  |  |
Outside Directors [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RSU's exchanged for common stock, RSU's exchanged |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,280 |
RSU's exchanged for common stock, Common stock issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,280 |
Stock cancelled in exchange for withholding tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,926 |
Payments to satify tax withholding |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 11,230 |
Executive officers [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RSU's exchanged for common stock, RSU's exchanged |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,793 |
RSU's exchanged for common stock, Common stock issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,793 |
Stock cancelled in exchange for withholding tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,657 |
Payments to satify tax withholding |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,136 |
Seven accredited investors [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued new, shares issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,992 |
Warrants cancelled |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 39,900 |
Gain on warrant exchange |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 51,190 |
Dr. Rodell [Member] | Stock Options [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued new, shares issued |  |  |  |  |  |  |  |  | 15,896 |  |  |  |  |  |  |
Stock cancelled in exchange for withholding tax |  |  |  |  |  |  |  |  | 34,209 |  |  |  |  |  |  |
Common Stock Sales Agreement [Member] | Wainwright [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock and warrants |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,260,869 | 896,031 |
Payment of commissions |  |  |  |  |  |  |  |  |  |  |  |  |  | 224,825 | 27,896 |
Payment of stock issuance costs |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,472 | $ 5,929 |
Stock issued new, shares issued |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,685,600 | 161,149 |
December 2019 Public Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock and warrants |  |  |  |  |  |  |  | $ 4,091,437 |  |  |  |  |  |  |  |
Stock issued new, shares issued |  |  |  |  |  |  |  | 3,333,334 |  |  |  |  |  |  |  |
Warrants issued, common shares available |  |  |  |  |  |  |  | 3,333,334 |  |  |  |  |  |  |  |
Warrant exercise price |  |  |  |  |  |  |  | $ 1.50 |  |  |  |  |  |  |  |
Warrant term |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |
January 2020 Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock and warrants |  |  |  |  |  |  |  |  |  |  |  | $ 3,364,878 |  |  |  |
Stock issued new, shares issued |  |  |  |  |  |  |  |  |  |  |  | 1,885,378 |  |  |  |
Stock sale price per share |  |  |  |  |  |  |  |  |  |  |  | $ 2.00 |  |  |  |
Warrants issued, common shares available |  |  |  |  |  |  |  |  |  |  |  | 943,689 |  |  |  |
January 2020 Offering [Member] | Wainwright [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued, common shares available |  |  |  |  |  |  |  |  |  |  |  | 56,561 |  |  |  |
Warrant exercise price |  |  |  |  |  |  |  |  |  |  |  | $ 2.75 |  |  |  |
Warrant term |  |  |  |  |  |  |  |  |  |  |  | 5 years 6 months |  |  |  |
December 2019 public offering [Member] | Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercised |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,700,000 |
Proceeds from warrant exercises |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,807,162 |
Warrants issued, shares |  |  |  |  |  |  |  |  |  | 3,433,334 |  |  |  |  |  |
Fair value of warrants |  |  |  |  |  |  |  |  |  | $ 3,021,334 |  |  |  |  |  |
January 2020 Registered Direct Financing [Member] | Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued, shares |  |  |  |  |  |  |  |  |  |  | 999,251 |  |  |  |  |
Fair value of warrants |  |  |  |  |  |  |  |  |  |  | $ 2,388,776 |  |  |  |  |

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