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GOODWILL AND OTHER INTANGIBLE ASSETS (Details Narrative) $ in Thousands | 6 Months Ended
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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