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LONG-TERM DEBT, COMMON STOCK WARRANT LIABILITY, AND SUBSEQUENT EVENT - Unsecured Loans Under the CARES Act (Details) - Unsecured Loan (CARES Act) - Unsecured Debt - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Sep. 03, 2021 | Dec. 31, 2020 | May 08, 2020
Debt Instrument [Line Items] |  |  |
Face amount of borrowings |  |  | $ 5,606,200
Date of monthly loan payments |  | Sep. 03, 2021 |
Scenario, Forecast |  |  |
Debt Instrument [Line Items] |  |  |
Periodic payment | $ 128,557 |  |

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