Taxes - Schedule of Valuation Allowance (Details) - USD ($)	12 Months Ended
Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2024
Schedule of Valuation Allowance [Abstract]
Beginning balance	$ 49,909	$ 56,911
Additions			58,230
Release	(47,701)	(11,560)
Foreign currency translation	(2,208)	4,558	(1,319)
Ending balance		$ 49,909	$ 56,911

The amount of increase in deferred tax assets valuation allowance current year addition.

No definition available.

Name:	ctw_DeferredTaxAssetsValuationAllowanceAddition
Namespace Prefix:	ctw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of increase in deferred tax assets valuation allowanceeExchange difference.

+ References

No definition available.

+ Details

Name:	ctw_DeferredTaxAssetsValuationAllowanceExchangeDifferenceForeignCurrencyTranslation
Namespace Prefix:	ctw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of increase in deferred tax assets valuation allowance current year reversal.

+ References

No definition available.

+ Details

Name:	ctw_DeferredTaxAssetsValuationAllowanceRelease
Namespace Prefix:	ctw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

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

- 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