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Variable Interest Entity Statements (Details)	Jul. 28, 2021
Wangbo | VIE
Variable Interest Entity Statements
Equity interest Owned	100.00%

X

- Definition

Represents the percentage of equity interest owned from counterparty.

+ References

No definition available.

+ Details

Name:	tanh_EquityInterestOwnedFromCounterparty
Namespace Prefix:	tanh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_CounterpartyNameAxis=tanh_WangboMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ConsolidatedEntitiesAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: