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INTANGIBLE ASSETS, NET | 12 Months Ended
--- | ---
Dec. 31, 2023
INTANGIBLE ASSETS, NET |
INTANGIBLE ASSETS, NET | 8. INTANGIBLE ASSETS, NET Intangible assets consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of December 31,
​ |  | 2022 |  | 2023
Gross carrying amount | ​ | ​ | ​ | ​ | ​ | ​
Trade names | ​ | $ | 460 | ​ | $ | 460
Software | ​ |  | 276 | ​ |  | 276
Accreditation | ​ | ​ | 100 | ​ | ​ | 100
​ | ​ |  | 836 | ​ |  | 836
Less: accumulated amortization | ​ |  | ​ | ​ |  | ​
Trade names | ​ |  | — | ​ |  | —
Software | ​ |  | (276) | ​ |  | (276)
Accreditation | ​ | ​ | (23) | ​ | ​ | (38)
​ | ​ |  | (299) | ​ |  | (314)
Intangible assets, net | ​ |  | ​ | ​ |  | ​
Trade names | ​ |  | 460 | ​ |  | 460
Software | ​ |  | — | ​ |  | —
Accreditation | ​ | ​ | 77 | ​ | ​ | 62
​ | ​ | $ | 537 | ​ | $ | 522
​ For the years ended December 31, 2021, 2022 and 2023, the Group performed impairment test on the trade name and brand and recognized impairment loss from continuing operations of nil, $657 and nil on brand, respectively. Amortization expenses for intangible assets from continuing operations amounted to $123, $5 and $15 for the years ended December 31, 2021, 2022 and 2023, respectively. Based on the current amount of intangible assets subject to amortization, the estimated amortization expenses for each of the future annual periods are as follows: ​
​ | ​ | ​ | ​
​ |  | Amount
​ |  | ​ | ​
2024 |  | $ | 10
2025 |  | ​ | 10
2026 |  | ​ | 10
2027 |  | ​ | 10
2028 |  | ​ | 10
Thereafter |  | ​ | 12
Total |  | $ | 62
​

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//350-30/tableOfContent + Details
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- References No definition available. + Details
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