XML 65 R63.htm IDEA: XBRL DOCUMENT v3.20.1

Operating Segments - Schedule of Segment Reporting Information (Details) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting [Abstract]
Financed portion amount in the purchase of capital expenditure	$ 82	$ 4

X

- Definition

Financed portion amount in the purchase of capital expenditure.

+ References

No definition available.

+ Details

Name:	PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure
Namespace Prefix:	PESI_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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