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GOODWILL AND OTHER INTANGIBLE ASSETS (Details Narrative) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 54

X

- Definition

Represents amount related to amortization expense to intangible assets.

+ References

No definition available.

+ Details

Name:	ppsi_AmortizationExpenseRelatedToIntangibleAssets
Namespace Prefix:	ppsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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