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Stockholders' Equity (Details Narrative) - USD ($) |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2021 | Mar. 19, 2021 | Jan. 22, 2021 | Sep. 08, 2020 | Jun. 22, 2020 | Feb. 27, 2020 | Dec. 04, 2018 | Sep. 30, 2018 | Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020 | Mar. 12, 2020
Shelf registration statement amount |  | $ 100,000,000 |  |  |  |  |  | $ 75,000,000 |  |  |  |
Proceeds from issuance of common stock |  |  |  |  |  |  |  |  | $ 38,943,478 | $ 5,794,747 |  |
Warrants exercise price | $ 0.01 |  |  |  |  |  |  |  | $ 0.01 |  |  |
Capital on DemandTM Sales Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Aggregate offering price |  |  |  |  |  |  | $ 16,000,000 |  |  |  |  |
Capital on Demand Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues |  |  |  |  |  |  |  |  | 7,200,000 |  | 5,200,000 |
Proceeds from issuance of common stock |  |  |  |  |  |  |  |  | $ 6,900,000 |  | $ 6,200,000 |
Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues |  |  |  |  |  | 4,571,428 |  |  |  |  |  |
Proceeds from issuance of common stock |  |  |  |  |  | $ 4,800,000 |  |  |  |  |  |
Shares issued, price per share |  |  |  |  |  | $ 1.05 |  |  |  |  |  |
Securities Purchase Agreement [Member] | Original Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants to purchase common stock |  |  |  |  |  | 2,971,428 |  |  |  |  |  |
Warrants term |  |  |  |  |  | 5 years |  |  |  |  |  |
Warrants exercise price |  |  |  |  |  | $ 1.15 |  |  |  |  |  |
Exchange Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants to purchase common stock | 1,200,000 |  |  |  |  |  |  |  | 1,200,000 |  |  |
Proceeds from issuance of warrants |  |  |  |  |  |  |  |  | $ 1,500,000 |  |  |
Exchange Agreements [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants to purchase common stock |  |  |  |  |  |  |  |  |  |  |  | 3,200,000
Warrants term |  |  |  |  |  |  |  |  |  |  |  | 5 years
Warrants exercise price |  |  |  |  |  |  |  |  |  |  |  | $ 1.24
Underwriting Agreement [Member] | Underwritten Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues |  |  |  |  | 2,666,667 |  |  |  |  |  |  |
Proceeds from issuance of common stock |  |  |  |  | $ 9,100,000 |  |  |  |  |  |  |
Shares issued, price per share |  |  |  |  | $ 3.75 |  |  |  |  |  |  |
Shares purchased, price per share |  |  |  |  | 3.4875 |  |  |  |  |  |  |
Underwriting discount price per share |  |  |  |  | $ 0.2625 |  |  |  |  |  |  |
Percentage of underwriting discount on public offering price |  |  |  |  | 0.70% |  |  |  |  |  |  |
Underwriting Agreement [Member] | January 2021 Registered Direct Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues |  |  | 25,925,925 |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock |  |  | $ 35,000,000 |  |  |  |  |  |  |  |  |
Shares purchased, price per share |  |  | $ 1.35 |  |  |  |  |  |  |  |  |
Placement agent fee description |  |  | In connection with the January 2021 Offering, the Company entered into a placement agent agreement (the "January 2021 Placement Agent Agreement") with A.G.P./Alliance Global Partners (together with Brookline Capital Markets, the "January 2021 Placement Agents") pursuant to which the Company agreed to pay the January 2021 Placement Agents a cash fee equal to 7% of the aggregate gross proceeds raised from the sale of the securities sold in the January 2021 Offering and reimburse the January 2021 Placement Agents for certain of their expenses in an amount not to exceed $82,500. |  |  |  |  |  |  |  |  |
Underwriting Agreement [Member] | March 2021 Registered Direct Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues | 11,538,462 |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock | $ 15,000,000 |  |  |  |  |  |  |  |  |  |  |
Shares purchased, price per share | $ 1.30 |  |  |  |  |  |  |  | $ 1.30 |  |  |
Placement agent fee description | In connection with the March 2021 Offering, the Company entered into a placement agent agreement (the "March 2021 Placement Agent Agreement") with A.G.P./Alliance Global Partners, as lead placement agent ("AGP," and together with JonesTrading Institutional Services LLC and Brookline Capital Markets, a division of Arcadia Securities, LLC, serving as co-placement agents, the "March 2021 Placement Agents") pursuant to which the Company agreed to pay the March 2021 Placement Agents an aggregate cash fee equal to 7% of the aggregate gross proceeds raised from the sale of the securities sold in the Offering and reimburse the Placement Agents for certain of their expenses in an amount not to exceed $82,500. |  |  |  |  |  |  |  |  |  |  |
LPC Purchase Agreement [Member] | Lincoln Park Capital Fund, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues |  |  |  | 26,000,000 |  |  |  |  |  |  | 3,300,000 |
Proceeds from issuance of common stock |  |  |  |  |  |  |  |  |  |  | $ 2,200,000 |
LPC Purchase Agreement [Member] | LPC Commitment Shares [Member] | Lincoln Park Capital Fund, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues |  |  |  | 437,828 |  |  |  |  |  |  |  |

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