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STOCK-BASED COMPENSATION, Summary of Stock Options (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 USD ($) shares | Sep. 30, 2021 USD ($) shares | Sep. 30, 2022 USD ($) Installment shares | Sep. 30, 2021 USD ($) shares | May 24, 2022 shares
Stock-based Compensation [Abstract] |  |  |  |  |
Stock-based compensation expense | $ | $ 476,000 | $ 1,729,000 | $ 2,538,000 | $ 3,302,000 |
Proceeds from stock options exercised | $ |  |  | $ 0 | $ 10,000 |
Dr. Federoff's [Member] |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |
Number of stock option awards outstanding (in shares) |  |  |  |  | 76,000
Stock Options [Member] |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |
Number of stock option awards granted (in shares) | 188,000 | 12,000 | 287,000 | 180,000 |
Incremental fair value of stock options recognized | $ |  |  | $ 100,000 |  |
Stock-based compensation expense | $ |  |  | $ 100,000 |  |
Stock option exercised (in shares) | 0 | 65 | 0 | 65 |
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) | 362,000 |  | 362,000 |  |
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. Matthew Angel [Member] |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |
Number of stock option awards granted (in shares) | 124,000 |  | 124,000 |  |
Number of monthly installments | Installment |  |  | 46 |  |
Stock Options [Member] | Dr. Federoff's [Member] |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |
Number of stock option awards granted (in shares) |  |  | 21,000 | 161,000 |
Number of monthly installments | Installment |  |  | 36 |  |
Number of accelerated vesting stock option (in shares) |  |  | 7,000 |  |
Time-Based Grant [Member] |  |  |  |  |
Stock-based Compensation [Abstract] |  |  |  |  |
Number of stock option awards granted (in shares) |  |  |  | 131,000 |
Vesting period |  |  | 4 years |  |
Number of monthly installments | Installment |  |  | 36 |  |
Number of accelerated vesting stock option (in shares) |  |  | 33,000 |  |
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) |  |  |  | 30,000 |
Number of accelerated vesting stock option (in shares) |  |  | 21,000 |  |

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