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CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Cash equivalents and available-for-sale securities |  |
Amortized Cost | $ 29,180 | $ 38,993
Fair Value | 29,171 | 39,001
Gross Unrealized Gains |  |
Cash equivalents and available-for-sale securities |  |
Gross Unrealized Gains (Losses) |  | 15
Gross Unrealized Losses |  |
Cash equivalents and available-for-sale securities |  |
Gross Unrealized Gains (Losses) | (9) | (7)
US treasury bills |  |
Cash equivalents and available-for-sale securities |  |
Amortized Cost | 4,963 | 12,591
Fair Value | 4,963 | 12,594
US treasury bills | Gross Unrealized Gains |  |
Cash equivalents and available-for-sale securities |  |
Gross Unrealized Gains (Losses) |  | 3
Government-sponsored enterprise securities |  |
Cash equivalents and available-for-sale securities |  |
Amortized Cost | 10,446 | 11,230
Fair Value | 10,444 | 11,233
Government-sponsored enterprise securities | Gross Unrealized Gains |  |
Cash equivalents and available-for-sale securities |  |
Gross Unrealized Gains (Losses) |  | 7
Government-sponsored enterprise securities | Gross Unrealized Losses |  |
Cash equivalents and available-for-sale securities |  |
Gross Unrealized Gains (Losses) | (2) | (4)
Corporate bonds and commercial paper |  |
Cash equivalents and available-for-sale securities |  |
Amortized Cost | 13,771 | 15,172
Fair Value | 13,764 | 15,174
Corporate bonds and commercial paper | Gross Unrealized Gains |  |
Cash equivalents and available-for-sale securities |  |
Gross Unrealized Gains (Losses) |  | 5
Corporate bonds and commercial paper | Gross Unrealized Losses |  |
Cash equivalents and available-for-sale securities |  |
Gross Unrealized Gains (Losses) | $ (7) | $ (3)

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- Definition Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, including portion attributable to noncontrolling interest. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners). + References No definition available. + Details
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
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