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Notes Payable - Additional Information (Details) - USD ($) | 1 Months Ended | 2 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Feb. 28, 2021 | Aug. 31, 2020 | Feb. 29, 2020 | Aug. 31, 2019 | Feb. 28, 2019 | Oct. 31, 2018 | Feb. 28, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Feb. 15, 2021 | Jun. 30, 2020 | May 07, 2020 | Mar. 31, 2016
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment on principle amount of note |  | $ 1,554,173 |  |  |  |  |  |  |  |  |  |  | $ 3,027,000 |  |  |  |
Sale of common stock, net of placement costs,shares | 1,818,181 |  | 1,487,601 |  |  |  |  |  |  |  |  |  |  | 42,672 |  |  |
Settlement of accrued interest through issuance of common shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 123,000 | $ 123,066 |  |  |
Sale of common stock, net of placement costs |  |  |  |  |  |  |  |  |  | $ 11,969,000 | $ 6,817,000 | $ 1,619,000 |  | 139,964 |  |  |
Gain (loss) on repayment of interest on convertible notes payable |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (16,898) |  |  |
Exercise of warrants to purchase number of shares of common stock |  |  | 613,791,000 |  |  |  |  |  | 613,791,000 |  |  |  |  |  |  |  |
Exercise Price | $ 2.40 |  | $ 2.40 |  |  |  |  |  | $ 2.40 | $ 2.40 |  |  | $ 2.40 |  |  |  |
Proceeds from exercise of common stock warrants |  |  |  |  |  |  |  |  | $ 1,473,098 |  |  |  | $ 4,174,018 |  | $ 2,000 |  |
Gain on note settlement |  | $ 64,757 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Secured Convertible Notes due August 15 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  | 8.00% |  |  |  |  |  |  |  |  | 10.00%
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,000,000
Payment on principle amount of note |  |  |  |  |  |  |  | $ 7,400,000 |  |  |  |  |  |  |  |  |
Senior Secured Convertible Notes due August 15, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion price |  |  |  |  |  |  |  | $ 11.434 |  |  |  |  |  |  |  |  | $ 170.00
Interest Note and Accrued Interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Semi-annual interest payments |  |  |  | $ 122,000 | $ 112,000 | $ 109,000 | $ 78,000 |  |  |  |  |  |  |  |  |  |
Promissory Note | Paycheck Protection Program |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 579,330 |

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