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STOCK-BASED COMPENSATION, Summary of Stock Options (Details) | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2022 shares | Apr. 30, 2021 shares | Mar. 31, 2021 shares | Jun. 30, 2022 USD ($) shares | Jun. 30, 2021 USD ($) shares | Jun. 30, 2022 USD ($) Installment shares | Jun. 30, 2021 USD ($) Installment shares | May 24, 2022 shares
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |
Stock-based compensation expense | $ |  |  |  | $ 879,000 | $ 1,154,000 | $ 2,062,000 | $ 1,573,000 |
Proceeds from stock options exercised | $ |  |  |  |  |  | $ 0 | $ 10,000 |
Dr. Federoffs's [Member] |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |
Number of stock option awards outstanding (in shares) |  |  |  |  |  |  |  | 1,523,000
Stock Options [Member] |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |
Number of stock option awards granted (in shares) |  |  |  | 723,000 | 3,366,000 | 1,981,000 | 3,366,000 |
Incremental fair value of stock options recognized | $ |  |  |  |  |  | $ 100,000 |  |
Stock-based compensation expense | $ |  |  |  |  |  | $ 100,000 |  |
Stock option exercised (in shares) |  |  |  | 0 | 1,300 | 0 | 1,300 |
Proceeds from stock options exercised | $ |  |  |  |  | $ 10,202 |  | $ 10,202 |
Stock options exercised, intrinsic value | $ |  |  |  |  | $ 57,212 |  | $ 57,212 |
Number of stock option awards outstanding (in shares) |  |  |  | 3,750,000 |  | 3,750,000 |  |
Stock Options [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |
Exercise period of extended post-termination |  |  |  |  |  | 90 days |  |
Stock Options [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |
Exercise period of extended post-termination |  |  |  |  |  | 36 months |  |
Stock Options [Member] | Dr. Federoffs's [Member] |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |
Number of stock option awards granted (in shares) |  | 3,225,000 | 414,000 |  |  |  |  |
Number of monthly installments | Installment |  |  |  |  |  | 36 |  |
Number of accelerated vesting stock option (in shares) |  |  |  |  |  | 138,000 |  |
Time-Based Grant [Member] |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |
Number of stock option awards granted (in shares) |  | 2,628,000 |  |  |  |  |  |
Vesting period |  |  |  |  |  |  | 4 years |
Number of monthly installments | Installment |  |  |  |  |  |  | 36 |
Number of accelerated vesting stock option (in shares) | 657,000 |  |  |  |  |  |  |
Time-Based Grant [Member] | Vesting on one-year Anniversary [Member] |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |
Vesting percentage |  |  |  |  |  |  | 25.00% |
Milestone Grant [Member] |  |  |  |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |  |  |  |
Number of stock option awards granted (in shares) |  | 597,000 |  |  |  |  |  |
Number of accelerated vesting stock option (in shares) | 415,000 |  |  |  |  |  |  |

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