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REVENUE AND SEGMENT INFORMATION - Significant expense categories (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
SEGMENT INFORMATION |  |  |  |
Total research and development | $ 918 | $ 1,826 | $ 3,842 | $ 5,592
Selling, general and administrative |  |  |  |
Total selling, general and administrative | 8,610 | 8,260 | 26,209 | 26,097
Capital expenditures of the segment |  |  | 100 | 200
Single reportable segment |  |  |  |
SEGMENT INFORMATION |  |  |  |
Clinical expenses | 719 | 936 | 2,510 | 3,499
Other research and development expenses | 199 | 890 | 1,332 | 2,093
Total research and development | 918 | 1,826 | 3,842 | 5,592
Selling, general and administrative |  |  |  |
Royalty expense | 285 | 354 | 826 | 1,594
Stock-based compensation | 376 | 843 | 1,435 | 2,792
Legal, financial and consulting | 1,061 | 824 | 3,063 | 2,325
Other general and administrative | 6,888 | 6,239 | 20,885 | 19,386
Total selling, general and administrative | $ 8,610 | $ 8,260 | $ 26,209 | $ 26,097

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