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Basis of Presentation (Details Narrative) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Accounting Policies [Abstract] |  |
[custom:WasteTreatmentBacklog-0] | $ 10,580,000 | $ 8,702,000
[custom:IncreaseDecreaseInWasteTreatmentBacklog] | $ 1,878,000 |

X
- Definition Increase decrease in waste treatment backlog. + References No definition available. + Details
Name: | PESI_IncreaseDecreaseInWasteTreatmentBacklog
Namespace Prefix: | PESI_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Waste treatment backlog. + References No definition available. + Details
Name: | PESI_WasteTreatmentBacklog
Namespace Prefix: | PESI_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration