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SUBSEQUENT EVENTS (Details Narrative) - CAD ($) $ in Thousands	Aug. 05, 2019	Aug. 04, 2019	Jun. 30, 2019
Reverse termination fee percentage required to remit			50.00%
Subsequent Event [Member] | Canadian Facilities [Member]
Percentage of outstanding unpaid amount of eligible receivables	90.00%	80.00%
Maximum additional borrowing base	$ 1,000
Reverse termination fee percentage required to remit	50.00%

X

- Definition

Maximum additional borrowing base.

+ References

No definition available.

+ Details

Name:	ppsi_MaximumAdditionalBorrowingBase
Namespace Prefix:	ppsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Percentage of outstanding unpaid amount of eligible receivables.

+ References

No definition available.

+ Details

Name:	ppsi_PercentageOfOutstandingUnpaidEligibleReceivablesForCreditFacility
Namespace Prefix:	ppsi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Reverse termination fee percentage required to remit.

+ References

No definition available.

+ Details

Name:	ppsi_ReverseTerminationFeePercentageRequiredToRemit
Namespace Prefix:	ppsi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=ppsi_CanadianFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: