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ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES - Additional Information (Details) ¥ in Thousands, $ in Thousands | 1 Months Ended |  |  |
--- | --- | --- | --- | ---
Apr. 30, 2022 USD ($) | Apr. 30, 2020 CNY (¥) | Apr. 30, 2020 USD ($) | Dec. 31, 2025 CNY (¥) | Dec. 31, 2025 USD ($) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2022 USD ($)
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES |  |  |  |  |  |  |  |
Funds raised for the development |  |  |  | ¥ 34,047 | $ 4,869 | ¥ 29,549 |  |
Settlement of outstanding claims | $ 8,600 |  |  |  |  |  |  |
Other payables |  |  |  |  |  |  | ¥ 17,200 | $ 2,500
Final payment of lawsuit | $ 3,000 |  |  |  |  |  |  |
Niulian |  |  |  |  |  |  |  |
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES |  |  |  |  |  |  |  |
Other payables |  |  |  | 1,500 | 200 |  |  |
Inner Mongolia Culture Assets and Equity Exchange | CrossFire New Mobile Game |  |  |  |  |  |  |  |
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES |  |  |  |  |  |  |  |
Funds raised for the development |  |  |  |  |  |  | ¥ 57,500 | $ 8,200
Additional funds aimed to be raised for the development |  |  |  | ¥ 100,000 | $ 14,300 |  |  |
Principal amount of refund claimed through civil suit |  | ¥ 57,500 | $ 4,600 |  |  |  |  |

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