SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES BASIS OF PRESENTATION AND PRINCIPLES OF CONSOLIDATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Feb. 06, 2026	Jan. 26, 2026	Dec. 31, 2025	Dec. 31, 2024	Apr. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Common stock, par value (in dollars per share)			$ 0.0001	$ 0.0001	$ 0.0001
Net loss			$ 8,978	$ 57,775
Retained earnings (accumulated deficit)			301,998	293,020
Cash, cash equivalents and marketable securities			54,700
Impairment of long-lived assets			$ 0	$ 0
Subsidiaries, ownership percentage (in percentage)			80.00%
Future contingent milestone and royalty assets			$ 3,000
Subsequent Event
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Reverse stock split	.125	.125