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Equity - Equity Offering Program (Details) - USD ($) |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 14 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 22, 2020 | Jul. 31, 2020 | Aug. 31, 2018 | Sep. 23, 2020 | Sep. 30, 2020 | Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Oct. 31, 2019 | Feb. 28, 2019
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from the issuance of common stock | $ 1,250,000 |  |  |  | $ 1,400,000 | $ 4,197,622 | $ 3,835,867 |  | $ 1,700,000 |  |
Number of shares issued in transaction (in shares) | 2,040,483 |  |  |  | 3,450,138 |  |  |  | 2,327,400 |  |
Average price per share (in dollars per share) | $ 0.61 |  |  |  |  |  | $ 0.74 |  | $ 0.74 |  |
Common stock, aggregate offering agreement, unused capacity |  |  |  |  | $ 41,800,000 | $ 41,800,000 |  | $ 41,800,000 |  |  |
Common shares issued in due diligence fees (in shares) |  |  | 261,628 |  |  |  |  |  |  |  |
Leviston Resources LLC |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Aggregate offering price, up to |  | $ 2,500,000 |  |  |  |  |  |  |  |  |
Proceeds from the issuance of common stock |  |  |  | $ 2,500,000 |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) |  |  |  | 2,793,586 |  |  |  |  |  |  |
Average price per share (in dollars per share) |  |  |  | $ 0.89 |  |  |  |  |  |  |
Number of shares issued to paid fee (in shares) |  | 173,611 |  |  |  |  |  |  |  |  |
Common stock, commitment fee value |  | $ 125,000 |  |  |  |  |  |  |  |  |
Triton |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Aggregate offering price, up to |  | $ 1,250,000 |  |  |  |  |  |  |  |  |
Proceeds from the issuance of common stock | $ 1,250,000 |  |  |  |  |  |  |  |  |  |
Average price per share (in dollars per share) | $ 0.61 |  |  |  |  |  |  |  |  |  |
2019 Sales Agreement | Leviston Resources LLC |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from the issuance of common stock |  |  |  |  |  |  |  | $ 1,250,000 |  |  |
Authorized amount of stock available for sale |  |  |  |  |  |  |  |  |  | $ 1,250,000 |
Additional authorized shares, percent of aggregate offering price |  |  |  |  |  |  |  |  |  | 5.00% |
Common stock, shares issued as commitment fee (in shares) |  |  |  |  | 284,852 | 284,852 |  | 284,852 |  |  |
2019 Equity Agreement |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Authorized amount of stock available for sale |  |  |  |  |  |  |  |  |  |  | $ 50,000,000
2019 Equity Agreement | Murray FO |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Authorized amount of stock available for sale |  |  |  |  |  |  |  |  |  |  | $ 5,000,000
Discount to the volume weighted average sales price of aggregate offering price |  |  |  |  |  |  |  |  |  |  | 10.00%
ATM Agreement |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Aggregate offering price, up to |  |  | $ 2,250,000 |  |  |  |  |  |  |  |
Proceeds from the issuance of common stock |  |  |  |  |  | $ 4,067,552 | $ 2,481,407 |  |  |  |
Average price per share (in dollars per share) |  |  |  |  | $ 0.73 | $ 0.73 | $ 0.70 | $ 0.73 | $ 0.70 |  |

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