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Note 7 - Perma-Fix Medical S.A. (Details) (USD $) | 3 Months Ended | 0 Months Ended | 8 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2015 | Apr. 04, 2014 | Mar. 31, 2015 | Aug. 31, 2014
Note 7 - Perma-Fix Medical S.A. (Details) [Line Items] |  |  |  |
Cash From Capital Transaction, to Be Received | $ 592,000 pesi_CashFromCapitalTransactionToBeReceived |  |  |
PF Medical S.A. [Member] |  |  |  |
Note 7 - Perma-Fix Medical S.A. (Details) [Line Items] |  |  |  |
Capital Investment in Publicly Traded Shell Company, Percentage Acquired |  | 64.00%pesi_CapitalInvestmentInPubliclyTradedShellCompanyPercentageAcquired / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = pesi_PFMedicalSAMember |  |
Series E Common Stock [Member] | Private Placement [Member] | PF Medical S.A. [Member] |  |  |  |
Note 7 - Perma-Fix Medical S.A. (Details) [Line Items] |  |  |  |
Common Stock, Value, Subscriptions |  |  |  | 2,357,000 us-gaap_CommonStockSharesSubscriptions / dei_LegalEntityAxis = pesi_PFMedicalSAMember / us-gaap_StatementClassOfStockAxis = pesi_SeriesECommonStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember
Common Stock, Shares Subscribed but Unissued (in Shares) |  |  |  | 250,000 us-gaap_CommonStockSharesSubscribedButUnissued / dei_LegalEntityAxis = pesi_PFMedicalSAMember / us-gaap_StatementClassOfStockAxis = pesi_SeriesECommonStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember
Series E Common Stock [Member] | PF Medical S.A. [Member] |  |  |  |
Note 7 - Perma-Fix Medical S.A. (Details) [Line Items] |  |  |  |
Stock Issued During Period, Shares, New Issues (in Shares) |  |  | 250,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = pesi_PFMedicalSAMember / us-gaap_StatementClassOfStockAxis = pesi_SeriesECommonStockMember |
Payments of Stock Issuance Costs |  |  | 242,000 us-gaap_PaymentsOfStockIssuanceCosts / dei_LegalEntityAxis = pesi_PFMedicalSAMember / us-gaap_StatementClassOfStockAxis = pesi_SeriesECommonStockMember |
PF Medical S.A. [Member] |  |  |  |
Note 7 - Perma-Fix Medical S.A. (Details) [Line Items] |  |  |  |
Cash Received From Capital Transaction | $ 67,000 pesi_CashReceivedFromCapitalTransaction / dei_LegalEntityAxis = pesi_PFMedicalSAMember |  | $ 1,545,000 pesi_CashReceivedFromCapitalTransaction / dei_LegalEntityAxis = pesi_PFMedicalSAMember |
Series E Common Stock SharesTo Be Issued (in Shares) | 68,181 pesi_SeriesECommonStockSharesToBeIssued / dei_LegalEntityAxis = pesi_PFMedicalSAMember |  |  |

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