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v3.22.4

UNSECURED NOTES PAYABLE (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Mar. 31, 2022
IfrsStatementLineItems [Line Items] |  |
Balance |  | $ 150
Exchange of notes payable and accrued interest for iOx shares | $ (150) | (150)
Balance |  |
I O X [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance |  | 150
Exchange of notes payable and accrued interest for iOx shares | (150) | $ (150)
Balance |  |

X
- References No definition available. + Details
Name: | ptgef_ExchangeOfNotesPayableAndAccruedInterestForIoxShare
Namespace Prefix: | ptgef_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- References No definition available. + Details
Name: | ptgef_NotePayable
Namespace Prefix: | ptgef_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ptgef_IOXMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |