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RESTRUCTURING AND INTEGRATION (Details Narrative) $ in Thousands | 12 Months Ended
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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

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- References No definition available. + Details
Name: | us-gaap_RestructuringAndRelatedActivitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration