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Note 1 - Description of Business and Basis of Operation (Details Textual) | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Perma Fix of Medical Corporation [Member] |  |
Capital Investment in Publicly Traded Shell Company Percentage Acquired | 60.50% |
Number of Reportable Segments | 3 |
Working Capital | $ 3,091,000 | $ 372,000
Working Capital, Increase from Prior Period | 2,719,000 |
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest | $ (63,000) | $ (2,992,000)

X
- Definition Represents the ownership percentage in a company that does not meet the definition of a business under Accounting Standards Codification ASC 805. + References No definition available. + Details
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Namespace Prefix: | pesi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents working capital. + References No definition available. + Details
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Namespace Prefix: | pesi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the amount of increase in working capital from the prior period. + References No definition available. + Details
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Namespace Prefix: | pesi_
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Balance Type: | debit
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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4569616-111683 + Details
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Balance Type: | credit
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |