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Share Purchase Warrants (Details)	Jul. 01, 2020 shares
Share Purchase Warrants [Abstract]
Warrants expired	3,300,000

X

- Definition

Number of warrants expired unexercised.

+ References

No definition available.

+ Details

Name:	pgtk_NumberOfWarrantsExpiredUnexercised
Namespace Prefix:	pgtk_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	pgtk_SharePurchaseWarrantsAbstract
Namespace Prefix:	pgtk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration