SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value measurements (Details) - USD ($) |
6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2026 |
Dec. 31, 2025 |
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| Warrant Liabilities Roll Forward | ||||
| Balance at the beginning | $ 205,146 | $ 253,087 | $ 205,146 | $ 253,087 |
| Fair value change | 973,556 | (47,941) | ||
| Balance at the end | $ 1,178,702 | $ 205,146 | ||
| Transfer any assets or liabilities | $ 0 | $ 0 | ||
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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