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SHAREHOLDERS' EQUITY - Non-vested Options Outstanding and Exercisable (Details) - $ / shares shares in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares |  |
Stock options granted (in shares) | 570 | 95
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value |  |
Stock options granted (in dollars per share) | $ 3.36 | $ 1.22
Amended and Restated Equity Incentive Plan and Non-related Plan Options |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares |  |
Balance at the beginning of the period (in shares) | 126 |
Stock options granted (in shares) | 570 |
Stock options forfeited (in shares) | (28) |
Stock options vested (in shares) | (102) |
Balance at the end of the period (in shares) | 566 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value |  |
Balance at the beginning of the period (in dollars per share) | $ 4.15 |
Stock options granted (in dollars per share) | 3.36 |
Stock options forfeited (in dollars per share) | 3.65 |
Stock options vested (in dollars per share) | 4.12 |
Balance at the end of the period (in dollars per share) | $ 3.39 |

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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Number of non-vested options outstanding. + References No definition available. + Details
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- Definition Weighted average grant-date fair value of non-vested options forfeited. + References No definition available. + Details
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