Advance payment for underwriter’s expenses.

No definition available.

Name:	chw_AdvancePaymentForUnderwritersExpenses
Namespace Prefix:	chw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of gross proceeds after deduction of underwriting discounts.

+ References

No definition available.

+ Details

Name:	chw_GrossProceedsAfterUnderwritingDiscount
Namespace Prefix:	chw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of ordinary shares.

+ References

No definition available.

+ Details

Name:	chw_OrdinaryShares
Namespace Prefix:	chw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Ordinary shares subject to voluntary escrow.

+ References

No definition available.

+ Details

Name:	chw_OrdinarySharesSubjectToVoluntaryEscrow
Namespace Prefix:	chw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Payment for underwriter’s expenses.

+ References

No definition available.

+ Details

Name:	chw_PaymentForUnderwritersExpenses
Namespace Prefix:	chw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of gross proceeds of IPO.

+ References

No definition available.

+ Details

Name:	chw_ProceedsFromIssuanceOfInitialPublicOfferings
Namespace Prefix:	chw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of shares purchased.

+ References

No definition available.

+ Details

Name:	chw_PurchaseOfShares
Namespace Prefix:	chw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of warrants purchased.

+ References

No definition available.

+ Details

Name:	chw_PurchaseOfWarrants
Namespace Prefix:	chw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of underwriting discount value.

+ References

No definition available.

+ Details

Name:	chw_UnderwritingDiscountValue
Namespace Prefix:	chw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_Borrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The exercise price of outstanding share options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 45
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45_d&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_ExercisePriceOfOutstandingShareOptions2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of contractual undiscounted cash flows for gross commitments to receive a loan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph B11D
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_B11D_e&doctype=Appendix&subtype=B
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_GrossLoanCommitments
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of share options exercised in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 45
-Subparagraph b
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45_b_iv&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 31
-Subparagraph b
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_31_b_iv&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 31
-Subparagraph b
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_31_b_iv&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares issued by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_106_d&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_NumberOfSharesIssued
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The nominal value per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph B10
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_B10_a_iii&doctype=Appendix&subtype=B
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 160
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_160_a_iii&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 79
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_79_a_iii&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_ParValuePerShare
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from the exercise of options.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 17
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_17&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_ProceedsFromExerciseOfOptions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from the issuing of ordinary shares. [Refer: Ordinary shares [member]]

+ References

+ Details

Name:	ifrs-full_ProceedsFromIssueOfOrdinaryShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from issuing shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 17
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_17_a&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_ProceedsFromIssuingShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=chw_InitialPublicOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=chw_SubsequentEventsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=chw_ForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=chw_AmericanDepositarySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ConsolidatedStructuredEntitiesAxis=chw_MaximPartnersLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialInstrumentsAxis=chw_UnderwriterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfAntidilutiveInstrumentsAxis=ifrs-full_WarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfAntidilutiveInstrumentsAxis=ifrs-full_ShareOptionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Events After The Reporting Period (Details)					1 Months Ended		12 Months Ended
Events After The Reporting Period (Details)	Oct. 16, 2026 USD ($) $ / shares shares	Oct. 12, 2026 AUD ($) $ / shares shares	Oct. 05, 2026 USD ($)	Oct. 02, 2026 USD ($) $ / shares shares	Oct. 31, 2026 USD ($)	Nov. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) shares	Jun. 30, 2026 AUD ($) shares	Jun. 30, 2025 AUD ($) shares	Jun. 30, 2024 AUD ($)	Oct. 14, 2026 USD ($)	Sep. 30, 2026 AUD ($)	Sep. 09, 2026 shares	Jul. 05, 2026 shares
Events After the Reporting Period [Line Items]
Ordinary shares subject to voluntary escrow							13,250,000	13,250,000
Number of shares issued
Gross proceeds							$ 3,500,920	$ 12,608,015
Ordinary shares value \| $								$ 12,152,599	$ 7,094,611
Exercised options							1,622,127	1,622,127	500,000
Proceeds from exercise of options \| $								$ 455,416
Initial Public Offering [Member]
Events After the Reporting Period [Line Items]
Advance payment for underwriter’s expenses \| $						$ 25,000
Subsequent Events [Member]
Events After the Reporting Period [Line Items]
Ordinary shares subject to voluntary escrow														13,250,000
Ordinary shares													10
Gross loan commitments \| $												$ 1,500,000
Forecast [Member]
Events After the Reporting Period [Line Items]
Number of shares issued				625,000
Gross proceeds \| $	$ 317,702
IPO received \| $			$ 3,143,118
Underwriting discount value \| $			257,802
Ordinary shares value \| $			3,500,920		$ 3,800,000
Exercised options		49,999
Exercise price \| $ / shares		$ 0.4
Proceeds from exercise of options \| $		$ 32,062
Premium \| $											$ 471,696
Gross proceeds after underwriting discount \| $	$ 292,286
Purchase of shares	56,834
Payment for underwriter’s expenses \| $			100,000
Forecast [Member] \| Ordinary Shares [Member]
Events After the Reporting Period [Line Items]
Number of shares issued	568,340	98,250
Forecast [Member] \| Initial Public Offering [Member]
Events After the Reporting Period [Line Items]
Advance payment for underwriter’s expenses \| $			$ 125,000
Forecast [Member] \| American Depositary Shares [Member]
Events After the Reporting Period [Line Items]
Issue price per share \| $ / shares	$ 5.59			$ 5.6
Purchase of shares	56,834
Forecast [Member] \| American Depositary Shares [Member] \| Maxim Partners LLC [Member]
Events After the Reporting Period [Line Items]
Issue price per share \| $ / shares				$ 7
Purchase of warrants				31,250
Forecast [Member] \| American Depositary Shares [Member] \| Ordinary Shares [Member]
Events After the Reporting Period [Line Items]
Number of shares issued				6,250,000
Forecast [Member] \| Underwriter [Member]
Events After the Reporting Period [Line Items]
Purchase of warrants				92,000
Purchase of shares	35,166
Forecast [Member] \| Warrants [Member]
Events After the Reporting Period [Line Items]
Number of shares issued				92,000
Issue price per share \| $ / shares				$ 5.6
Gross proceeds \| $				$ 3,500,000
Ordinary shares value \| $				$ 920
Purchase of warrants				717,000
Forecast [Member] \| Warrants [Member] \| Initial Public Offering [Member]
Events After the Reporting Period [Line Items]
Number of shares issued				625,000
Forecast [Member] \| Warrants [Member] \| American Depositary Shares [Member]
Events After the Reporting Period [Line Items]
Number of shares issued				625,000
Purchase of warrants	2,841
Forecast [Member] \| Share options [Member]
Events After the Reporting Period [Line Items]
Exercised options		48,251
Exercise price \| $ / shares		$ 0.25