Stock Options (Details) - Schedule of additional information regarding stock options outstanding	6 Months Ended
Sep. 30, 2021 $ / shares shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Outstanding and exercisable, Number of shares	3,277,500
Exercise price 0.01 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Outstanding and exercisable, Number of shares	312,500
Outstanding and exercisable, Weighted average remaining contractual life (years)	11 months 1 day
Outstanding and exercisable, Range of Exercise prices (in Dollars per share) \| $ / shares	$ 0.01
Exercise price 1.70 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Outstanding and exercisable, Number of shares	2,865,000
Outstanding and exercisable, Weighted average remaining contractual life (years)	1 month 28 days
Outstanding and exercisable, Range of Exercise prices (in Dollars per share) \| $ / shares	$ 1.7
Exercise price 2.26 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Outstanding and exercisable, Number of shares	25,000
Outstanding and exercisable, Weighted average remaining contractual life (years)	9 months 14 days
Outstanding and exercisable, Range of Exercise prices (in Dollars per share) \| $ / shares	$ 2.26
Exercise price 0.01 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Outstanding and exercisable, Number of shares	25,000
Outstanding and exercisable, Weighted average remaining contractual life (years)	2 years 3 months 14 days
Outstanding and exercisable, Range of Exercise prices (in Dollars per share) \| $ / shares	$ 1.03
Exercise price 1.50 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Outstanding and exercisable, Number of shares	50,000
Outstanding and exercisable, Weighted average remaining contractual life (years)	2 years 6 months
Outstanding and exercisable, Range of Exercise prices (in Dollars per share) \| $ / shares	$ 1.5

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ References

+ Details

Name:	us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=pgtk_ExercisePrice0.01Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=pgtk_ExercisePrice1.70Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=pgtk_ExercisePrice2.26Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=pgtk_ExercisePrice001Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=pgtk_ExercisePrice150Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: