SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Basis of Presentation (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Accounting Policies [Abstract]
Accumulated deficit	$ 293,062	$ 275,212

Amount of accumulated undistributed earnings (deficit).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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+ Details