The amount of instruments representing indebtedness held by the entity that are measured at fair value through other comprehensive income. [Refer: Debt instruments held; Financial assets measured at fair value through other comprehensive income]

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_DebtInstrumentsHeldMeasuredAtFairValueThroughOtherComprehensiveIncome
Namespace Prefix:	ifrs-full_
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 fair value of financial liabilities. [Refer: At fair value [member]; Financial liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 25
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_25&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_FinancialLiabilitiesAtFairValue
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

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_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

- Definition

The cash outflow for repayments of current borrowings. [Refer: Current borrowings]

+ 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_RepaymentsOfCurrentBorrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The weighted average share price. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 45
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45_c&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_WeightedAverageSharePrice2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

No definition available.

+ Details

Name:	pbm_DebtInstrumentConvertibleInitialConversionPrice
Namespace Prefix:	pbm_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of extinguishment of debt equity.

+ References

No definition available.

+ Details

Name:	pbm_ExtinguishmentOfDebtEquity
Namespace Prefix:	pbm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of expense (income) related to adjustment to fair value of promissory note.

+ References

No definition available.

+ Details

Name:	pbm_FairValueAdjustmentOnPromissoryNote
Namespace Prefix:	pbm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_ParentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=pbm_NCACNoteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=pbm_PGIMember
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:

Promissory Notes (Details) - USD ($)				12 Months Ended
Promissory Notes (Details) - USD ($)	Jan. 25, 2025	Nov. 26, 2024	Jan. 25, 2024	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Oct. 25, 2024	Sep. 30, 2024
Promissory Notes [Line Items]
Notes paid	$ 1,515,501
Fair value				$ 605,234	$ 945,096
Number of shares issued (in Shares)				2,439	94
Fair value gain					$ (705,565)	$ 108,288
Unsecured Convertible Promissory Note [Member]
Promissory Notes [Line Items]
Fair value gain				377,897
Parent [member] \| Unsecured Convertible Promissory Note [Member]
Promissory Notes [Line Items]
Principal amount of debt issued			$ 1,610,657
Notes paid	$ 1,460,657		150,000
Fair value			1,418,675
NCAC Note [Member]
Promissory Notes [Line Items]
Fair value gain				705,565		$ (108,288)
Fair value of notes
NCAC Note [Member] \| Unsecured Convertible Promissory Note [Member]
Promissory Notes [Line Items]
Principal amount of debt issued			1,615,501
Notes paid			100,000
Fair value			$ 1,413,529
Number of shares issued (in Shares)									865
Conversion price (in Dollars per share)									$ 1,867.97
Weighted average share price (in Dollars per share)		$ 1,867.97
PGI [Member] \| Unsecured Convertible Promissory Note [Member]
Promissory Notes [Line Items]
Extinguishment amount									$ 1,307,960
Conversion price (in Dollars per share)								$ 1,867.97	$ 1,867.97
Weighted average share price (in Dollars per share)		$ 1,867.97
Fair value gain				$ 327,668
Common Shares [Member]
Promissory Notes [Line Items]
Number of shares issued (in Shares)				2,293,277	90,883
Common Shares [Member] \| NCAC Note [Member]
Promissory Notes [Line Items]
Number of shares issued (in Shares)							7,499
Common Shares [Member] \| PGI [Member]
Promissory Notes [Line Items]
Number of shares issued (in Shares)			1,338
Common Shares [Member] \| PGI [Member] \| Unsecured Convertible Promissory Note [Member]
Promissory Notes [Line Items]
Number of shares issued (in Shares)							6,780	226	556