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Variable Interest Entity (“VIE”) (Details Narrative) - Campoverde Srl [Member] - Joint Venture [Member] € in Millions | Dec. 18, 2023 EUR (€)
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Ownership percentage | 50.00%
Contract value | € 50

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- Definition Contract value. + References No definition available. + Details
Name: | PESI_ContractValue
Namespace Prefix: | PESI_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | dei_LegalEntityAxis=PESI_CampoverdeSrlMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=PESI_JointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |