Note 5 - Goodwill and Other Intangible Assets (Details) - Changes in the Carrying Amount Goodwill by Reporting Segments (USD $)
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12 Months Ended | 0 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Oct. 01, 2014
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Oct. 01, 2013
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Goodwill [Line Items] | ||||
Balance | $ 1,330,000us-gaap_Goodwill | $ 29,186,000us-gaap_Goodwill | ||
Goodwill impairment | (380,000)us-gaap_GoodwillImpairmentLoss | (27,856,000)us-gaap_GoodwillImpairmentLoss | ||
Balance | 0us-gaap_Goodwill | 1,330,000us-gaap_Goodwill | ||
Treatment [Member] | ||||
Goodwill [Line Items] | ||||
Balance |
13,691,000us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pesi_TreatmentMember |
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Goodwill impairment |
(13,691,000)us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = pesi_TreatmentMember |
0us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = pesi_TreatmentMember |
0us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = pesi_TreatmentMember |
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Services [Member] | SYA [Member] | ||||
Goodwill [Line Items] | ||||
Sale of SYA subsidary |
(950,000)us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = pesi_SYAMember / us-gaap_StatementBusinessSegmentsAxis = pesi_ServicesMember |
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Services [Member] | ||||
Goodwill [Line Items] | ||||
Balance |
1,330,000us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pesi_ServicesMember |
15,495,000us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pesi_ServicesMember |
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Goodwill impairment |
(380,000)us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = pesi_ServicesMember |
(14,165,000)us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = pesi_ServicesMember |
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Balance |
1,330,000us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pesi_ServicesMember |
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SYA [Member] | ||||
Goodwill [Line Items] | ||||
Sale of SYA subsidary |
$ (950,000)us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = pesi_SYAMember |
X | ||||||||||
- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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X | ||||||||||
- Definition
Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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- Details
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X | ||||||||||
- Details
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