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OTHER (INCOME)/EXPENSE (Details Narrative) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Other Income and Expenses [Abstract]
Abatement of penalties	$ 1,100

X

- Definition

Information related to abatement of penalties.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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