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Stockholders’ Equity (Details Narrative) - USD ($) |  |  |  |  |  |  | 1 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 19, 2021 | Jan. 22, 2021 | Sep. 08, 2020 | Jun. 22, 2020 | Feb. 27, 2020 | Dec. 04, 2018 | Mar. 31, 2021 | Sep. 30, 2018 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020 | Jun. 30, 2021 | Mar. 12, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Shelf registration statement amount | $ 100,000,000 |  |  |  |  |  |  | $ 75,000,000 |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  |  |  |  |  |  | $ 52,688,945 | $ 20,250,426 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  |  |  |  | $ 0.01 |  |  |  |
Capital on DemandTM Sales Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Less than 12 months, unrealized gains, fair value |  |  |  |  |  | $ 16,000,000.0 |  |  |  |  |  |  |
Capital on Demand Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  |  |  |  |  |  | 7,200,000 | 2,100,000 |  |  |
Proceeds from Issuance of Common Stock |  |  |  |  |  |  |  |  | $ 6,900,000 | $ 4,300,000 |  |  |
Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
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] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right |  |  |  |  | 2,971,428 |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Term |  |  |  |  | 5 years |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  | $ 1.15 |  |  |  |  |  |  |  |
Exchange Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right |  |  |  |  |  |  |  |  | 1,200,000 |  |  |  |
Proceeds from Issuance of Warrants |  |  |  |  |  |  |  |  | $ 1,500,000 |  |  |  |
Exchange Agreements [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right |  |  |  |  |  |  |  |  |  |  |  |  | 3,200,000
Warrants and Rights Outstanding, Term |  |  |  |  |  |  |  |  |  |  |  |  | 5 years
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.24
Underwriting Agreement [Member] | Underwritten Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |
Share Price |  |  |  | 3.4875 |  |  |  |  |  |  |  |  |
[custom:UnderwritingDiscountPricePerShare] |  |  |  | $ 0.2625 |  |  |  |  |  |  |  |  |
Payments from sale of nols |  |  |  | 7.00% |  |  |  |  |  |  |  |  |
Underwriting Agreement [Member] | January 2021 Registered Direct Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  | 25,925,925 |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  | $ 35,000,000 |  |  |  |  |  |  |  |  |  |  |
Share Price |  | $ 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] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  |  |  |  | 11,538,462 |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  |  |  |  | $ 15,000,000 |  |  |  |  |  |
Share Price |  |  |  |  |  |  |  |  |  |  |  | $ 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] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  | 26,000,000.0 |  |  |  |  |  |  |  | 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] |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  | 437,828 |  |  |  |  |  |  |  |  |  |

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