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v3.25.1

Subsequent Events (Details) ¥ in Thousands, $ in Thousands |  |  |  |  |  |  | 12 Months Ended |  |  |  |  |  |  |  |  |
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Jan. 20, 2025 USD ($) | Sep. 29, 2024 | Aug. 09, 2023 USD ($) | Aug. 09, 2023 CNY (¥) | Mar. 29, 2023 USD ($) | Mar. 29, 2023 CNY (¥) | Dec. 27, 2022 USD ($) | Dec. 27, 2022 CNY (¥) | Nov. 16, 2022 USD ($) | Nov. 16, 2022 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 CNY (¥) | Feb. 20, 2025 USD ($) | Feb. 20, 2025 CNY (¥) | Feb. 19, 2025 USD ($) | Feb. 19, 2025 CNY (¥) | Jan. 20, 2025 CNY (¥) | Jan. 17, 2025 USD ($) | Jan. 17, 2025 CNY (¥) | Dec. 31, 2024 CNY (¥) | Apr. 09, 2024 CNY (¥) | Mar. 26, 2024 USD ($) | Mar. 26, 2024 CNY (¥) | Jan. 24, 2024 USD ($) | Jan. 24, 2024 CNY (¥) | Nov. 08, 2022 USD ($) | Nov. 08, 2022 CNY (¥)
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repaid amount of borrowed |  |  | $ 700 | ¥ 4,800 | $ 700 | ¥ 5,000 | $ 100 | ¥ 200 | $ 700 | ¥ 5,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 5,500 |  |  | $ 700 | ¥ 5,000 | $ 1,400 | ¥ 10,000
Shaoxing Branch of Bank of Communications Co., Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  | 3.65% |  |  |  |  |  |  |  |  | 3.65% |  |  |  |  |  |  |
Debt instrument period |  |  |  |  |  |  |  |  |  |  | 1 year | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bearing interest rate |  |  |  |  |  |  |  |  |  |  | 3.45% |  |  |  |  |  |  |  |  | 3.45% |  |  |  |  |  |  |
Zhejiang Shangyu Rural Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument period |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shaoxing Branch of Bank of Communications Co., Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repaid amount of borrowed |  |  |  |  |  |  |  |  |  |  | $ 8,800 | ¥ 64,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing facility |  |  |  |  |  |  |  |  |  |  | 8,000 |  |  |  |  |  |  |  |  | ¥ 58,000 |  |  |  |  |  |  |
Zhejiang Shangyu Rural Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing facility |  |  |  |  |  |  |  |  |  |  | $ 5,500 |  |  |  |  |  |  |  |  | ¥ 40,000 |  | $ 700 | ¥ 5,000 |  |  |  |
Subsequent Event [Member] | Nanjing CBAK [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 2.98% | 2.98% | 100.00% | 100.00% |  |  |  |  |  |  |  |  |  |  |
Borrowing facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,100 |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Zhejiang Shangyu Rural Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,490 | ¥ 76,560 |  |  |  |  |  |  |  |
Subsequent Event [Member] | Bank of Ningbo Co., Ltd [Member] | Unsecured Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate | 2.80% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.80% |  |  |  |  |  |  |  |  |  |
Debt instrument period | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Nanjing CBAK [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing facility | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  | $ 600 | ¥ 4,000 |  | ¥ 30,000 | ¥ 7,100 |  |  |  |  |  |  |  |  |  |
Minimum [Member] | Zhejiang Shangyu Rural Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  | 2.85% |  |  |  |  |  |  |  |  | 2.85% |  |  |  |  |  |  |
Maximum [Member] | Zhejiang Shangyu Rural Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  | 3.60% |  |  |  |  |  |  |  |  | 3.60% |  |  |  |  |  |  |

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