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PROPERTY AND EQUIPMENT, NET | 12 Months Ended
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Dec. 31, 2023
PROPERTY AND EQUIPMENT, NET |
PROPERTY AND EQUIPMENT, NET | 7. PROPERTY AND EQUIPMENT, NET Property and equipment consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | As of December 31,
​ |  | 2022 |  | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Motor vehicles |  | $ | 2 |  | $ | 2
Office and computer equipment |  | ​ | 829 |  | ​ | 199
Leasehold improvements |  | ​ | 31 |  | ​ | 24
Sub-total |  | ​ | 862 |  | ​ | 225
Less: accumulated depreciation |  | ​ | (586) |  | ​ | (219)
Total |  | $ | 276 |  | $ | 6
​ For the years ended December 31, 2021, 2022 and 2023, depreciation expenses from continuing operations were $231 and $206, $3, respectively, which were recorded in cost of revenues, selling and marketing expenses, general and administrative expenses and research and development expenses. The Group performed impairment test on the property and equipment, and there is no impairment loss from continuing operations for the years ended December 31, 2021, 2022 and 2023, respectively.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-7 + Details
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