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GOODWILL AND OTHER INTANGIBLE ASSETS (Details Narrative) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 687

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

No definition available.

+ Details

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

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- References

No definition available.

+ Details

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