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ACCRUED AND OTHER LIABILITIES | 12 Months Ended
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Dec. 31, 2023
ACCRUED AND OTHER LIABILITIES |
ACCRUED AND OTHER LIABILITIES | 11. ACCRUED AND OTHER LIABILITIES Accrued and other liabilities consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | As of December 31,
​ |  | 2022 |  | 2023
Accrued payroll and welfare |  | $ | 866 |  | $ | 635
Payable for purchase of services (Note i) |  | ​ | 391 |  | ​ | —
Receipt in advance |  | ​ | 10 |  | ​ | —
Amounts due to students (Note ii) |  | ​ | 837 |  | ​ | 268
Deferred revenue (Note iii) | ​ | ​ | 754 | ​ | ​ | 544
Loan from a third party (Note iv) | ​ | ​ | 707 | ​ | ​ | —
Others |  | ​ | 172 |  | ​ | 21
Total |  | $ | 3,737 |  | $ | 1,468
​ (Note i) The balance represented accrued payable for purchase of services, no such item for current year. (Note ii) The balance represented refund to students and HEERF Grant to student received on behalf of students. (Note iii) The balance represented the tuition payment collected in advance. (Note iv) Sundry Management, LLC offered an interest-free loan with a one-year term, which was repaid in full on January 27, 2023.

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