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EQUITY-BASED INCENTIVE PLANS - Narrative (Details) | 1 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
May 31, 2022 shares | Sep. 30, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) shares | Sep. 30, 2022 USD ($) | Sep. 01, 2019 $ / shares | Jun. 30, 2016 shares | May 31, 2013 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  | 1 year |  |  |  |  |
Expiration period |  | 10 years |  |  |  |  |
Ownership percent of voting stock |  | 10.00% |  |  |  |  |
Options granted (in shares) |  | 243,319 |  |  |  |  |
Weighted average grant date fair value (in usd per share) | $ / shares |  | $ 2.10 |  |  |  |  |
Share-based compensation arrangement by share-based payment award, options, vested in period, fair value | $ |  | $ 309,000 |  |  |  |  |
Unrecognized stock-based compensation expense | $ |  | $ 6,200,000 |  |  |  |  |
Remaining contractual term, options expected to vest |  | 2 years 1 month 6 days |  |  |  |  |
Share-based compensation arrangement by share-based payment award, award requisite service period |  | 5 years |  |  |  |  |
Stock Issuance Program |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Percentage of fair market value on grant date, minimum exercise price |  | 100.00% |  |  |  |  |
2013 Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares authorized |  |  |  |  |  |  | 4,750,000
Shares available for grant |  |  |  |  |  | 625,390 |
2016 Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares authorized |  |  |  |  |  | 4,500,000 |
Shares available for grant |  | 1,355,726 |  |  |  |  |
Number of additional shares authorized | 5,500,000 |  |  |  |  |  |
All Plans |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares available for grant |  | 5,868,201 |  |  |  |  |
Minimum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  | 1 year |  |  |  |  |
Maximum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  | 4 years |  |  |  |  |
Market Based Service |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  | 3 years |  |  |  |  |
RSAs |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Nonvested shares vested |  | (178,169) |  |  |  |  |
Nonvested shares outstanding |  | 193,665 | 406,001 |  |  |  |
RSAs | Non-Vested |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Fair value of options vested in period | $ |  | $ 731,000 |  |  |  |  |
Nonstatutory Options | Discretionary Option Grant Program |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Percentage of fair market value on grant date, minimum exercise price |  | 10000.00% |  |  |  |  |
Incentive Stock Options | Discretionary Option Grant Program | Less Than 10% |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Percentage of fair market value on grant date, minimum exercise price |  | 100.00% |  |  |  |  |
Incentive Stock Options | Discretionary Option Grant Program | 10% or More |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Percentage of fair market value on grant date, minimum exercise price |  | 110.00% |  |  |  |  |
Options |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Volatility rate |  | 46.00% |  |  |  |  |
Risk free interest rate |  | 3.67% |  |  |  |  |
Expected term |  | 6 years |  |  |  |  |
Expected dividend rate |  | 0.00% |  |  |  |  |
Remaining contractual term, options expected to vest |  | 8 years 1 month 6 days |  |  |  |  |
Options | Time Based Service | Minimum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  | 3 years |  |  |  |  |
RSUs |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Fair value of options vested in period | $ |  | $ 1,400,000 |  |  |  |  |
Nonvested shares vested |  | (491,520) |  |  |  |  |
Nonvested shares outstanding |  | 137,577 | 450,000 |  |  |  |
RSUs | Time Based Service | Minimum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  | 1 year |  |  |  |  |
RSUs | Time Based Service | Maximum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  | 3 years |  |  |  |  |
RSUs | Market Based Service |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Weighted average grant date fair value of nonvested options (in usd per share) | $ / shares |  |  |  |  | $ 1.42 |  |
Unrecognized stock-based compensation expense | $ |  | $ 0 |  | $ 143,000 |  |  |
Restricted stock units | Risk free interest rate | Black Scholes Method |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Debt instrument, measurement input |  |  |  |  | 0.0138 |  |
Restricted stock units | Expected term | Monte Carlo Method |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Debt instrument, measurement input |  |  |  |  | 3 |  |
Restricted stock units | Price volatility | Black Scholes Method |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Debt instrument, measurement input |  |  |  |  | 0.38 |  |
Profits Interests |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Fair value of profits interests | $ |  | $ 1,000,000 | $ 591,000 |  |  |  |

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