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Short-term Bank Loans - Additional Information (Details) |  |  |  |  | 6 Months Ended | 12 Months Ended |  |  |  |  |  |  |
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Apr. 01, 2022 USD ($) item | Dec. 22, 2021 USD ($) item | Jul. 02, 2021 USD ($) item | Apr. 07, 2021 USD ($) item | Apr. 07, 2021 CNY (¥) item | Jun. 30, 2022 USD ($) | Jun. 30, 2022 CNY (¥) | Jun. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 CNY (¥) | Apr. 01, 2022 CNY (¥) | Dec. 22, 2021 CNY (¥) | Dec. 17, 2021 | Jul. 02, 2021 CNY (¥) | Apr. 07, 2021 CNY (¥) | Dec. 31, 2020 USD ($) | Jun. 01, 2020
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan, maturity term |  |  |  |  |  | 1 year | 1 year | 12 months |  |  |  |  |  |  |  |  |
Annual interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 6.00% |  |  |  |
Short-term bank loans | $ |  |  |  |  |  | $ 4,192,344 |  |  | $ 4,719,552 |  |  |  |  |  |  | $ 4,719,552 |
Interest expense | $ |  |  |  |  |  | 106,978 |  | $ 137,594 |  |  |  |  |  |  |  |  |
Loan payable to Bank of China Lishui Branch [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term bank loans | $ |  |  |  |  |  | 2,550,044 |  |  |  |  |  |  |  |  |  | 2,679,852 |
Loan payable to Bank of China Lishui Branch [Member] | Tantech Bamboo [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of borrowing | ¥ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 16,000,000 |  |
Number of related paties |  |  |  | 3 | 3 |  |  |  |  |  |  |  |  |  |  |  |
Loan payable to Bank of China Lishui Branch [Member] | Tantech Charcoal [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of borrowing |  | $ 2,550,044 | $ 2,679,852 |  |  |  |  |  |  |  |  | ¥ 17,080,000 |  | ¥ 17,080,000 |  |  |
Loan, maturity term |  | 6 months | 6 months |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual interest rate |  | 4.50% | 4.65% |  |  |  |  |  |  |  |  | 4.50% |  | 4.65% |  |  |
Number of related paties |  | 2 | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of third party |  | 1 | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of individual related party |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable to Bank of China Lishui Branch [Member] | Building And Land Use Right [Member] | Tantech Charcoal [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum guaranteed amount |  | $ 3,900,000 | $ 4,100,000 |  |  |  |  |  |  |  |  | ¥ 25,960,000 |  | ¥ 25,960,000 |  |  |
Loan payable to Shanghai Pudong Development ("SPD") Bank Lishui Branch [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term bank loans | $ |  |  |  |  |  | 1,642,300 |  |  |  |  |  |  |  |  |  | $ 2,039,700 |
Loan payable to Shanghai Pudong Development ("SPD") Bank Lishui Branch [Member] | Tantech Bamboo [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of borrowing | $ 1,791,600 |  |  | $ 2,510,400 |  |  |  |  |  |  | ¥ 12,000,000 |  |  |  |  |  |
Loan, maturity term |  |  |  | 1 year | 1 year |  |  |  |  |  |  |  |  |  |  |  |
Annual interest rate | 3.90% |  |  | 5.65% |  |  |  |  |  |  | 3.90% |  |  |  | 5.65% |  | 3.90%
Number of related paties | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of loan repaid |  |  |  | $ 156,900 | ¥ 1,000,000 | 1,642,300 | ¥ 11,000,000 |  | $ 470,700 | ¥ 3,000,000.0 |  |  |  |  |  |  |
Loan payable to Shanghai Pudong Development ("SPD") Bank Lishui Branch [Member] | Tantech Charcoal [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of individual related party |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan payable to Shanghai Pudong Development ("SPD") Bank Lishui Branch [Member] | Building And Land Use Right [Member] | Tantech Bamboo [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum guaranteed amount | $ 4,400,000 |  |  | $ 4,600,000 |  |  |  |  |  |  | ¥ 29,250,000 |  |  |  | ¥ 29,250,000 |  |
Notes Payable to Banks [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Bank Loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense | $ |  |  |  |  |  | $ 106,978 |  | $ 137,594 |  |  |  |  |  |  |  |  |

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