Change In Fair Value, Loss Recognized

No definition available.

Name:	cybn_ChangeInFairValueLossRecognized
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Convertible Debenture Term

+ References

No definition available.

+ Details

Name:	cybn_ConvertibleDebentureTerm
Namespace Prefix:	cybn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Conversion Percentage

+ References

No definition available.

+ Details

Name:	cybn_DebtInstrumentConversionPercentage
Namespace Prefix:	cybn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Conversion Price

+ References

No definition available.

+ Details

Name:	cybn_DebtInstrumentConversionPrice
Namespace Prefix:	cybn_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Convertible Debenture, Threshold Trading Days

+ References

No definition available.

+ Details

Name:	cybn_DebtInstrumentConvertibleDebentureThresholdTradingDays
Namespace Prefix:	cybn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Equivalent Percentage

+ References

No definition available.

+ Details

Name:	cybn_DebtInstrumentEquivalentPercentage
Namespace Prefix:	cybn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Deferred Loss on Fair Value Difference

+ References

No definition available.

+ Details

Name:	cybn_DeferredLossOnFairValueDifference
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Early Repayment Fees

+ References

No definition available.

+ Details

Name:	cybn_EarlyRepaymentFees
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair Value Loss On Financial Instruments

+ References

No definition available.

+ Details

Name:	cybn_FairValueLossOnFinancialInstruments
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Increasing Outstanding Principal Balance Percentage

+ References

No definition available.

+ Details

Name:	cybn_IncreasingOutstandingPrincipalBalancePercentage
Namespace Prefix:	cybn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Incurred Debt Issuance Costs

+ References

No definition available.

+ Details

Name:	cybn_IncurredDebtIssuanceCosts
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Issuance Costs

+ References

No definition available.

+ Details

Name:	cybn_IssuanceCosts
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Net Cash Received Upon Issuance

+ References

No definition available.

+ Details

Name:	cybn_NetCashReceivedUponIssuance
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Pre-paid Guaranteed Interest

+ References

No definition available.

+ Details

Name:	cybn_PrePaidGuaranteedInterest
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Prepayment Premium Of Percentage Year One

+ References

No definition available.

+ Details

Name:	cybn_PrepaymentPremiumOfPercentageYearOne
Namespace Prefix:	cybn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Prepayment Premium Of Percentage Year Two

+ References

No definition available.

+ Details

Name:	cybn_PrepaymentPremiumOfPercentageYearTwo
Namespace Prefix:	cybn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Principal Interest Percentage

+ References

No definition available.

+ Details

Name:	cybn_PrincipalInterestPercentage
Namespace Prefix:	cybn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Repaid Outstanding Balance, Total

+ References

No definition available.

+ Details

Name:	cybn_RepaidOutstandingBalanceTotal
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Repayment of Remaining Principal

+ References

No definition available.

+ Details

Name:	cybn_RepaymentOfRemainingPrincipal
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Unsecured Debt, Fair Value

+ References

No definition available.

+ Details

Name:	cybn_UnsecuredDebtFairValue
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Unsecured Debt, Fair Value Discount Rate

+ References

No definition available.

+ Details

Name:	cybn_UnsecuredDebtFairValueDiscountRate
Namespace Prefix:	cybn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Unsecured Debt, Votality Rate

+ References

No definition available.

+ Details

Name:	cybn_UnsecuredDebtVotalityRate
Namespace Prefix:	cybn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Volume-Weighted Average Price, Percentage

+ References

No definition available.

+ Details

Name:	cybn_VolumeWeightedAveragePricePercentage
Namespace Prefix:	cybn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Withholding Taxes

+ References

No definition available.

+ Details

Name:	cybn_WithholdingTaxes
Namespace Prefix:	cybn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of notes and debentures 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 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

+ Details

Name:	ifrs-full_NotionalAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- 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

- Details

Name:	cybn_ClassesOfDebtInstrumentsAxis=cybn_ConvertibleDebenturesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cybn_ConvertibleDebenturesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

CONVERTIBLE DEBENTURES - Narrative (Details) - USD ($)			12 Months Ended
CONVERTIBLE DEBENTURES - Narrative (Details) - USD ($)	Oct. 31, 2025	Jun. 30, 2025	Mar. 31, 2026	Nov. 03, 2025
Convertible Debentures
Disclosure of detailed information about borrowings [line items]
Threshold trading days	5 days	5 days	5 days
Convertible Debentures
Disclosure of detailed information about borrowings [line items]
Notes and debentures issued		$ 500,000,000
Notional amount		$ 50,000,000	$ 29,850,000
Convertible debenture term		2 years
Pre-paid guaranteed interest		$ 5,500,000
Principal interest percentage		11.00%
Debt instrument, equivalent percentage		5.50%
Increasing outstanding principal balance percentage		18.00%
Conversion price (in dollars per share)		$ 10.92	$ 6.5106
Volume-weighted average price, percentage		130.00%
Prepayment terms, year one payment, premium percentage		5.00%
Prepayment terms, year two payment, premium percentage		3.00%
Conversion percentage		4.99%
Fair value		$ 45,700,000
Fair value discount rate		20.00%
Volatility rate		67.50%
Net cash received on issuance		$ 44,500,000
Loss on fair value difference		1,200,000
Incurred debt issuance costs		$ 2,917,000
Issuance costs			$ 35,000
Number of shares issued (in shares)			4,584,856
Repaid outstanding balance, total				$ 22,765,000
Repayment of remaining principal				20,150,000
Early repayment fees				2,615,000
Withholding taxes				$ 492,000
Fair value loss on financial instruments			$ 5,500,000
Loss recognized			$ 1,200,000