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STOCK OPTION RESERVE (Details 1) - PBI 2021 Equity Incentive Plan [Member] - shares | 6 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
IfrsStatementLineItems [Line Items] |  |
Balance, beginning of period | 90,281 | 98,171
Expired or forfeited | (25,167) |
Balance, end of period | 65,114 | 98,171
Exercisable, end of period | 43,723 | 38,461

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- References No definition available. + Details
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Namespace Prefix: | ptgef_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | ptgef_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | ptgef_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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Namespace Prefix: | ptgef_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_DefinedBenefitPlansAxis=ptgef_PBI2021EquityIncentivePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |