FAIR VALUE MEASUREMENT - Movements of level 3 fair value measurements (Details) - USD ($) |
12 Months Ended | ||
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Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||
| Impairment loss | $ (200,237) | $ 0 | $ 0 |
| Foreign currency translation adjustment | 19,154,156 | (9,022,611) | (545,498) |
| Fair Value, Nonrecurring | Significant unobservable inputs (level 3) | |||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||
| Assets, Fair value measurements | 8,102,887 | 7,501,930 | |
| Additions during the year | 0 | 0 | |
| Net unrealized gain (loss) | 1,806,959 | 600,957 | |
| Assets, Fair value measurements | $ 9,909,846 | $ 8,102,887 | $ 7,501,930 |
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- Definition Fair value acquired during period. No definition available.
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- Definition Fair value portion of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of impairment loss on investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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