v3.25.0.1
Share-Based Compensation - ​Schedule of Restricted Shares (Details) - TuanChe Limited Share Incentive Plan (the "Plan") - Restricted Stock [Member] - $ / shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Restricted Shares Activities [Line Items]    
Number of restricted shares, Outstanding at beginning 3,573,750 6,034,250
Weighted-Average Grant-Date Fair Value, Outstanding at beginning $ 0.457 $ 0.527
Number of restricted shares, Granted 20,900,000 1,500,000
Weighted-Average Grant-Date Fair Value, Granted $ 0.037 $ 0.209
Number of restricted shares, Forfeit   (312,000)
Weighted-Average Grant-Date Fair Value, Forfeit   $ 0.431
Number of restricted shares, Vested (20,593,750) (3,648,500)
Weighted-Average Grant-Date Fair Value, Vested $ 0.087 $ 0.474
Number of restricted shares, Outstanding at ending 3,880,000 3,573,750
Weighted-Average Grant-Date Fair Value, Outstanding at ending $ 0.155 $ 0.457