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COMMITMENTS AND CONTINGENT LIABILITIES (Details Narrative) - Stimunity S.A. [Member]	Jun. 30, 2021 USD ($)
IfrsStatementLineItems [Line Items]
Commitment To Investment	$ 1,900,000
Discretionary Investment	688,359
Additional Discretionary Investment	$ 1,000,000.0

X

- Definition

Represents the amount of additional discretionary investment.

+ References

No definition available.

+ Details

Name:	ptgef_AdditionalDiscretionaryInvestment
Namespace Prefix:	ptgef_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the amount related to commitment to investment.

+ References

No definition available.

+ Details

Name:	ptgef_CommitmentToInvestment
Namespace Prefix:	ptgef_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	ptgef_DiscretionaryInvestment
Namespace Prefix:	ptgef_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	ptgef_IfrsStatementLineItems
Namespace Prefix:	ptgef_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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