v3.23.1
ORGANIZATION AND PRINCIPAL ACTIVITIES - Additional information (Details) - CNY (¥)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Yuehang Chuangyi Technology (Beijing) Co., Ltd. ("Chuangyi Technology") [Member]      
ORGANIZATION AND PRINCIPAL ACTIVITIES      
Percentage of legal ownership 100.00%    
Yuehang Sunshine Network Technology Group Co., Ltd. ("AirNet Online") [Member] | Yuehang Chuangyi Technology (Beijing) Co., Ltd. ("Chuangyi Technology") [Member]      
ORGANIZATION AND PRINCIPAL ACTIVITIES      
Aggregate amount of loans to shareholders ¥ 50,000    
Debt instrument term 15 days    
Beijing Linghang Shengshi Advertising Co., Ltd. Linghang Shengsh [Member]      
ORGANIZATION AND PRINCIPAL ACTIVITIES      
Minimum annual service fee percentage 0.50%    
AM Yuehan [Member]      
ORGANIZATION AND PRINCIPAL ACTIVITIES      
Minimum annual service fee percentage 1.00%    
Variable Interest Entity, Primary Beneficiary [Member]      
ORGANIZATION AND PRINCIPAL ACTIVITIES      
Percentage of legal ownership 100.00%    
VIEs net revenue percentage 96.60% 77.70% 100.00%
VIEs total asset percentage 71.50% 86.30%  
VIEs total liabilities percentage 69.30% 71.50%