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Income Tax - Schedule of Changes in Valuation Allowance (Details) - CNY (¥)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Schedule of Changes in Valuation Allowance [Abstract]
Balance at the beginning of the year	¥ 418,748,714	¥ 275,431,351
Increases in the year	82,215,410	144,963,545
Decrease due to expiration of loss carry forwards	(18,836,473)	(1,646,182)
Balance at the end of the year	¥ 482,127,651	¥ 418,748,714

X

- Definition

The amount of decrease due to expiration of loss carry forwards.

+ References

No definition available.

+ Details

Name:	thch_DecreaseDueToExpirationOfLossCarryForwards
Namespace Prefix:	thch_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

+ Details

Name:	us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

+ Details

Name:	us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration