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v3.25.1

Financing Receivables, net (Details 1) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Financing Receivables, net |  |  |
Balance at beginning of year | $ 2,239,151 | $ 0 |
Change of allowance for credit losses | 92,036 | 2,245,159 | $ 0
Translation adjustments | (62,475) | (6,008) |
Balance at end of year | $ 2,268,712 | $ 2,239,151 |

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Balance Type: | credit
Period Type: | instant

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Namespace Prefix: | tanh_
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Balance Type: | credit
Period Type: | duration

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Namespace Prefix: | tanh_
Data Type: | xbrli:monetaryItemType
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- Definition Amount of increase (decrease) in interest income on financing receivable before allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph c -Subparagraph (2)(iii) -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph c -Subparagraph (2)(ii) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph c -Subparagraph (2)(i) -Publisher SEC Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph c -Subparagraph (1)(i) -Publisher SEC + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | credit
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