PREPAID EXPENSES AND OTHER CURRENT ASSETS - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid external R&D costs	$ 2,771	$ 1,609
Prepaid external manufacturing costs	132	398
Prepaid insurance	1,048	609
Prepaid subscriptions	1,244	947
Interest and dividend receivable	507	555
Prepaid consultants	21	1,207
Refunds due from contract research organizations	544	14,480
Other	760	2,397
Total prepaid expenses and other current assets	$ 7,027	$ 22,202

Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
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-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 340
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 340
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Name:	us-gaap_PrepaidInsurance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant