v3.25.0.1
Fair Value Measurement - ​Schedule of Fair Value of Warrant Liability (Details)
¥ in Thousands, $ in Thousands
Jun. 30, 2024
CNY (¥)
Jun. 30, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
​Schedule of Fair Value of Warrant Liability [Line Items]      
Balance at fair value ¥ 1,632 $ 225 ¥ 3,952
Level 1 Inputs [Member]      
​Schedule of Fair Value of Warrant Liability [Line Items]      
Balance at fair value
Level 2 Inputs [Member]      
​Schedule of Fair Value of Warrant Liability [Line Items]      
Balance at fair value
Level 3 Inputs [Member]      
​Schedule of Fair Value of Warrant Liability [Line Items]      
Balance at fair value ¥ 1,632 $ 225 ¥ 3,952