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SHARE-BASED COMPENSATION - Additional Information (Details) |  |  |  |  |  |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 26, 2024 USD ($) $ / shares shares | Mar. 15, 2023 USD ($) $ / shares shares | Mar. 09, 2023 USD ($) $ / shares shares | Feb. 28, 2022 USD ($) $ / shares shares | Jan. 05, 2022 USD ($) $ / shares shares | Dec. 10, 2021 $ / shares shares | Nov. 10, 2021 shares | Jan. 31, 2022 shares | Dec. 31, 2024 CNY (¥) shares | Dec. 31, 2024 USD ($) shares | Dec. 31, 2023 CNY (¥) shares | Jun. 30, 2024 shares | Dec. 31, 2021 $ / shares
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares expected to be vested |  |  |  |  |  |  |  |  | 4,456 | 4,456 |  |  |
Stock Options, Shares, Granted |  |  |  |  |  |  |  |  | 0 | 0 |  | 0 |
Share-Based Payment Arrangement, Option |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Stock or Unit Option Plan Expense | ¥ |  |  |  |  |  |  |  |  | ¥ 0 |  | ¥ 0 |  |
Share-based compensation | ¥ |  |  |  |  |  |  |  |  | 0 |  |  |  |
Restricted shares |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Stock or Unit Option Plan Expense | ¥ |  |  |  |  |  |  |  |  | ¥ 0 |  | ¥ 1,070,144 |  |
Restricted stock closing price | $ / shares |  |  |  |  |  | $ 1.6 |  |  |  |  |  |  | $ 1.31
Number of shares issued |  | 1,000,000 |  |  | 1,050,000 |  |  |  |  |  |  |  |
Stock Options, Shares, Granted |  |  |  |  |  |  |  |  | 0 | 0 |  | 347,527 |
Shares outstanding |  |  |  |  |  |  |  |  | 0 | 0 | 0 |  |
Restricted shares issued for services (in shares) |  |  |  |  |  | 250,000 | 500,000 | 250,000 |  |  |  |  |
Stock issued value for services | $ |  | $ 372,600 |  |  | $ 1,354,500 |  |  |  |  |  |  |  |
Exercise price (per share) | $ / shares |  | $ 0.3726 |  |  | $ 1.29 |  |  |  |  |  |  |  |
Restricted shares | Class A ordinary shares |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Shares outstanding |  |  |  |  |  |  |  |  | 0 | 0 | 0 |  |
Restricted shares | Class B ordinary shares |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Granted during the period | 12,900,000 |  |  |  |  |  |  |  |  |  |  |  |
Fair value of shares | $ | $ 2,130,000 |  |  |  |  |  |  |  |  |  |  |  |
Stock price | $ / shares | $ 0.17 |  |  |  |  |  |  |  |  |  |  |  |
Restricted shares | Employee |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of shares | $ |  |  |  | $ 1,708,024 |  |  |  |  |  |  |  |  |
Restricted stock closing price | $ / shares |  |  |  | $ 1.04 |  |  |  |  |  |  |  |  |
Exercisable Options, Average Remaining Contractual life (years) |  |  |  | 3 years |  |  |  |  |  |  |  |  |
Restricted shares issued (in shares) |  |  |  |  |  |  |  |  | 1,094,888 | 1,094,888 |  |  |
Number of shares expected to be vested |  |  |  |  |  |  |  |  | 547,443 | 547,443 |  |  |
Restricted shares | Employee | Class A ordinary shares |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Granted during the period |  |  |  | 1,642,331 |  |  |  |  |  |  |  |  |
Number of shares issued |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |
Stock issued value for services | $ |  | $ 372,600 |  |  |  |  |  |  |  |  |  |  |
Exercise price (per share) | $ / shares |  | $ 0.3726 |  |  |  |  |  |  |  |  |  |  |
Restricted shares | Management and staffs | Class A ordinary shares |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Options, Shares, Granted | 6,255,483 |  |  |  |  |  |  |  |  |  |  |  |
Stock Options, Shares, Granted value | $ | $ 988,366 |  |  |  |  |  |  |  |  |  |  |  |
Stock Options, Shares, Granted (per share) | $ / shares | $ 0.158 |  |  |  |  |  |  |  |  |  |  |  |
Restricted shares | Senior Manager |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Stock or Unit Option Plan Expense |  |  |  |  |  |  |  |  | ¥ 5,353,151 | $ 733,379 | ¥ 2,866,560 |  |
Share-based compensation |  |  |  |  |  |  |  |  | ¥ 1,700,000 | $ 240,000 |  |  |
Granted during the period |  |  | 3,000,000 | 1,600,000 |  |  |  |  |  |  |  |  |
Fair value of shares | $ |  |  | $ 3,025,000 | $ 1,694,000 |  |  |  |  |  |  |  |  |
Restricted stock closing price | $ / shares |  |  | $ 1.01 | $ 1.06 |  |  |  |  |  |  |  |  |
Outstanding Restricted Shares, Average Remaining Amortization Period (Years) |  |  |  |  |  |  |  |  | 1 month 28 days | 1 month 28 days |  |  |
Restricted shares | Senior Manager | Class B ordinary shares |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Shares outstanding |  |  |  |  |  |  |  |  | 12,900,000 | 12,900,000 | 0 |  |
Restricted shares | Post 2024 Reverse Stock Split |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock closing price | $ / shares |  |  |  |  |  | $ 28.8 |  |  |  |  |  |  | $ 23.58
Number of shares issued |  | 55,556 |  |  | 58,333 |  |  |  |  |  |  |  |
Restricted shares issued for services (in shares) |  |  |  |  |  | 13,889 | 27,778 | 13,889 |  |  |  |  |
Exercise price (per share) | $ / shares |  | $ 6.71 |  |  | $ 23.22 |  |  |  |  |  |  |  |
Restricted shares | Post 2024 Reverse Stock Split | Employee |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock closing price | $ / shares |  |  |  | $ 18.72 |  |  |  |  |  |  |  |  |
Restricted shares issued (in shares) |  |  |  |  |  |  |  |  | 60,827 | 60,827 |  |  |
Number of shares expected to be vested |  |  |  |  |  |  |  |  | 30,412 | 30,412 |  |  |
Restricted shares | Post 2024 Reverse Stock Split | Employee | Class A ordinary shares |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Granted during the period |  |  |  | 91,241 |  |  |  |  |  |  |  |  |
Number of shares issued |  | 55,556 |  |  |  |  |  |  |  |  |  |  |
Exercise price (per share) | $ / shares |  | $ 6.71 |  |  |  |  |  |  |  |  |  |  |
Restricted shares | Post 2024 Reverse Stock Split | Management and staffs | Class A ordinary shares |  |  |  |  |  |  |  |  |  |  |  |  |
SHARE-BASED COMPENSATION |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Options, Shares, Granted | 347,527 |  |  |  |  |  |  |  |  |  |  |  |
Stock Options, Shares, Granted (per share) | $ / shares | $ 2.844 |  |  |  |  |  |  |  |  |  |  |  |

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