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Subsequent Events - Additional Information (Details) - USD ($) |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 24, 2019 | Sep. 05, 2019 | Jun. 30, 2019 | Jun. 30, 2019
Subsequent Event [Line Items] |  |  |  |
Net proceeds from sale of common stock |  |  | $ 1,000,000 |
Subsequent Events | Secured Promissory Note | Private Placement |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Secured note principal amount |  | $ 1,500,000 |  |
Interest on the Note |  | 11.00% |  |
Maturity date |  | Sep. 05, 2020 |  |
Common Stock |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Additional shares sold |  |  |  | 1,491,000
Common Stock | Market Issuance Sales Agreement | Subsequent Events |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Additional shares sold | 146,466 |  |  |
Net proceeds from sale of common stock | $ 327,891 |  |  |
Average sale price per share | $ 2.24 |  |  |

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