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RESTRUCTURING AND INTEGRATION (Details Narrative) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 873

X

- Definition

Amount of restructuring charges, remediation cost, and asset impairment loss. Presented as a component of cost of goods sold.

+ References

No definition available.

+ Details

Name:	ppsi_CostOfGoodsSoldRestructuringSettlementAndImpairmentProvisions
Namespace Prefix:	ppsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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