Deposit Paid for Acquisition of Long-Term Investments (Details) ¥ in Millions |
Mar. 31, 2026
USD ($)
|
Mar. 31, 2026
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Sep. 30, 2024
USD ($)
|
Sep. 30, 2024
CNY (¥)
|
Sep. 27, 2023
USD ($)
|
Sep. 27, 2023
CNY (¥)
|
|---|---|---|---|---|---|---|---|---|---|
| Deposit Paid for Acquisition of Long-Term Investments [Line Items] | |||||||||
| Purchase cost | $ | $ 50,297,177 | $ 51,082,600 | |||||||
| Target equity | $ 5,500,000 | ¥ 40.0 | $ 12,400,000 | ¥ 90.0 | |||||
| Remaining target equity balance | 17,800,000 | ¥ 130.0 | |||||||
| Capital contribution | $ 16,800,000 | ¥ 115.8 | |||||||
| Shenzhen BAK Power Battery Co. Ltd. [Member] | |||||||||
| Deposit Paid for Acquisition of Long-Term Investments [Line Items] | |||||||||
| Equity interest, percentage | 5.00% | 5.00% | |||||||
| Nanjing CBAK [Member] | |||||||||
| Deposit Paid for Acquisition of Long-Term Investments [Line Items] | |||||||||
| Equity interest, percentage | 5.00% | 5.00% | |||||||
| Nanjing CBAK [Member] | |||||||||
| Deposit Paid for Acquisition of Long-Term Investments [Line Items] | |||||||||
| Purchase cost | $ 35,700,000 | ¥ 260.0 | |||||||
| Target equity | ¥ | ¥ 130.0 |