XML 207 R53.htm IDEA: XBRL DOCUMENT
v3.25.1

Summary of Significant Accounting Policies (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Financial assets and liabilities measured at fair value | $ 198,000 | $ 1,727,694 | $ 0
Level 1 |  |  |
Financial assets and liabilities measured at fair value | 0 | 0 |
Level 2 |  |  |
Financial assets and liabilities measured at fair value | 0 | 0 |
Level 3 |  |  |
Financial assets and liabilities measured at fair value | 2,198,000 | 1,727,694 |
Warrant liabilities |  |  |
Financial assets and liabilities measured at fair value | 2,000,000 |  |
Convertible Notes |  |  |
Financial assets and liabilities measured at fair value | 198,000 | 1,727,694 |
Convertible Notes | Level 1 |  |  |
Financial assets and liabilities measured at fair value | 0 | 0 |
Convertible Notes | Level 2 |  |  |
Financial assets and liabilities measured at fair value | 0 | 0 |
Convertible Notes | Level 3 |  |  |
Financial assets and liabilities measured at fair value | 198,000 | 1,727,694 |
Convertible Notes | Total Level |  |  |
Financial assets and liabilities measured at fair value | 2,198,000 | $ 1,727,694 |
Warrants liabilities | Level 1 |  |  |
Financial assets and liabilities measured at fair value | 0 |  |
Warrants liabilities | Level 2 |  |  |
Financial assets and liabilities measured at fair value | 0 |  |
Warrants liabilities | Level 3 |  |  |
Financial assets and liabilities measured at fair value | $ 2,000,000 |  |

X
- Definition Fair value of asset after deduction of liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueNetAssetLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=tanh_WarrantLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=us-gaap_ConvertibleNotesPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel12And3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=tanh_WarrantsLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |