Name:	tanh_ImpairmentOfLongTermInvestments
Namespace Prefix:	tanh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the number of days in which consideration payable after the completion of transfer of ownership.

No definition available.

Name:	tanh_NumberOfDaysConsiderationPayableAfterCompletionOfTransferOfOwnership
Namespace Prefix:	tanh_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the information pertaining to the number of square kilometers, right to mine provided.

No definition available.

Name:	tanh_NumberOfSquareKilometersRightToMineProvided
Namespace Prefix:	tanh_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	duration

Represents the value of mining rights.

No definition available.

Name:	tanh_ValueOfMiningRights
Namespace Prefix:	tanh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_EquityMethodInvestmentAggregateCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=tanh_LiboHaokunMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=tanh_JingningZhonggangMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=tanh_TantechMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=tanh_FuquanChengwangMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=tanh_TantechMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=tanh_JingningMeizhongkuangMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: