SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Basis of presentation and foreign currency (Details) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2026 USD ($) subsidiary	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($) subsidiary	Dec. 31, 2024 USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Number of subsidiaries \| subsidiary	4		4
Foreign exchange gain (loss) \| $	$ (487)	$ (51)	$ 52	$ (880)

Amount, before tax, of unrealized gain (loss) from foreign currency transaction.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 946
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Balance Type:	credit
Period Type:	duration