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v3.21.4

SUBSEQUENT EVENTS - Effect to the Issuance of common stock issuable upon exercise of the warrants (Details) - USD ($) | Nov. 04, 2021 | Sep. 30, 2021 | Sep. 03, 2021 | Aug. 19, 2021 | Jul. 26, 2021 | Jul. 22, 2021 | May 26, 2021
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Subsequent Event [Line Items] |  |  |  |  |  |  |
Convertible note principal amount | $ 4,510,000 |  |  |  |  |  |
Convertible note, interest rate |  |  | 15.00% |  |  |  |
Warrants to acquire shares of common stock | 1,478,752 |  |  |  |  |  |
Warrants exercise price |  | $ 0.6877 | $ 0.6877 | $ 0.6877 | $ 0.6877 | $ 0.6877 | $ 0.6877
Additional warrants one |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Warrants to acquire shares of common stock | 144,016 |  |  |  |  |  |
Convertible note one | Warrants one |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Convertible note principal amount | $ 550,000 |  |  |  |  |  |
Convertible note, interest rate | 15.00% |  |  |  |  |  |
Convertible note, default interest rate | 20.00% |  |  |  |  |  |
Warrants to acquire shares of common stock | 208,687 |  |  |  |  |  |
Warrants exercise price | $ 8.84 |  |  |  |  |  |
Convertible note one | Additional warrants one |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Warrants to acquire shares of common stock | 27,246 |  |  |  |  |  |
Convertible note one | Additional warrants two |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Warrants to acquire shares of common stock | 116,770 |  |  |  |  |  |
Warrants exercise price | $ 8.84 |  |  |  |  |  |
Convertible note two | Warrants two |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Convertible note principal amount | $ 1,100,000 |  |  |  |  |  |
Convertible note, interest rate | 15.00% |  |  |  |  |  |
Convertible note, default interest rate | 20.00% |  |  |  |  |  |
Warrants to acquire shares of common stock | 417,375 |  |  |  |  |  |
Warrants exercise price | $ 8.84 |  |  |  |  |  |
Convertible note three | Warrants three |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Convertible note principal amount | $ 2,750,000 |  |  |  |  |  |
Convertible note, interest rate | 15.00% |  |  |  |  |  |
Convertible note, default interest rate | 20.00% |  |  |  |  |  |
Warrants to acquire shares of common stock | 848,818 |  |  |  |  |  |
Warrants exercise price | $ 8.84 |  |  |  |  |  |
Convertible note four | Warrants four |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Convertible note principal amount | $ 110,000 |  |  |  |  |  |
Convertible note, interest rate | 15.00% |  |  |  |  |  |
Convertible note, default interest rate | 20.00% |  |  |  |  |  |
Warrants to acquire shares of common stock | 30,872 |  |  |  |  |  |
Warrants exercise price | $ 8.84 |  |  |  |  |  |

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