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Derivative Warrant Liabilities - Schedule of Derivative Warrant Liability (Details) - USD ($) | 2 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Schedule of Derivative Warrant Liability [Abstract] |  |  |  |
Number of shares, Opening balance | 21,866 | 21,866 |  |
Amount, Opening balance | $ 595,358 | $ 901,608 |  |
Number of shares, Warrant exchange |  | (1,104) |  |
Amount, Warrant exchange |  | $ (6,996) |  |
Number of shares, Fair value gain (loss) |  |  |  |
Amount, Fair value gain (loss) | $ 306,250 | $ (694,516) | $ 306,250 |
Number of shares, Balance ending | 21,866 | 20,762 | 21,866 |
Amount,Balance ending | $ 901,608 | $ 200,096 | $ 901,608 |

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- Definition The amount of current warrant liabilities. [Refer: Warrant liability] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CurrentWarrantLiability
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. + References No definition available. + Details
Name: | pbm_FairValuegainlossOnWarrantLiability
Namespace Prefix: | pbm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The number of share issued in warrant liability. + References No definition available. + Details
Name: | pbm_NumberOfShareIssuedWarrantLiability
Namespace Prefix: | pbm_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of share in Fair value gain loss. + References No definition available. + Details
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Namespace Prefix: | pbm_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | pbm_ScheduleOfDerivativeWarrantLiabilityAbstract
Namespace Prefix: | pbm_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Number of shares issuance of shares for warrant exchange. + References No definition available. + Details
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Namespace Prefix: | pbm_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of Warrant exchange. + References No definition available. + Details
Name: | pbm_WarrantExchange
Namespace Prefix: | pbm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration