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Note 13 - Subsequent Events (Details) (USD $) | 0 Months Ended | 3 Months Ended | 6 Months Ended | 0 Months Ended |  | 0 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2013 | Jun. 30, 2014 Series E Common Stock [Member] Private Placement [Member] Scenario, Forecast [Member] PF Medical S.A. [Member] | Jun. 30, 2014 Private Placement [Member] Scenario, Forecast [Member] PF Medical S.A. [Member] | Jun. 30, 2014 Private Placement [Member] Scenario, Paid For Shares Sold [Member] PF Medical S.A. [Member] | Jun. 30, 2014 Private Placement [Member] Scenario, Not Paid For Shares Sold [Member] PF Medical S.A. [Member] | Jul. 29, 2014 Subsequent Event [Member] SYA [Member] | Jul. 29, 2014 Subsequent Event [Member] SYA [Member] | Jul. 28, 2014 Subsequent Event [Member] | Dec. 31, 2013 SYA [Member]
Note 13 - Subsequent Events (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds From Insurance Settlement, Investing Activities, Working Capital |  |  |  |  |  |  |  |  |  | $ 2,350,000 |
Proceeds from Insurance Settlement, Investing Activities | 3,850,000 |  |  |  |  |  |  |  |  |  |
Proceeds From Insurance Settlement, Investing Activities, Maintained Reserve |  |  |  |  |  |  |  |  |  | 1,500,000 |
Payments of Financing Costs |  |  |  |  |  |  |  |  |  | 15,000 |
Disposal Group, Capital Stock Sold, Percentage |  |  |  |  |  |  |  |  | 100.00% |  |
Proceeds from Divestiture of Businesses |  |  |  |  |  |  |  | 1,300,000 |  |  |
Disposal Group, Working Capital Adjustment |  |  |  |  |  |  |  | 60,000 |  |  |
Escrow Deposit |  |  |  |  |  |  |  |  | 50,000 |  |
Escrow Deposit, Term |  |  |  |  |  |  |  | 1 year |  |  |
Disposal Group, Including Discontinued Operation, Revenue |  | 809,000 | 1,472,000 |  |  |  |  |  |  |  | 2,564,736
Disposal Group, Including Discontinued Operation, Gross Profit (Loss) |  |  |  |  |  |  |  |  |  |  | (621,288)
Proceeds from Issuance of Common Stock |  |  |  | $ 1,800,000 | $ 750,000 |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in Shares) |  |  |  |  | 68,161 |  |  |  |  |  |
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions |  |  |  |  |  | 64.00% | 69.00% |  |  |  |

X
- Definition Represents the percentage of capital stock sold in a disposal group. + References No definition available. + Details
Name: | pesi_DisposalGroupCapitalStockSoldPercentage
Namespace Prefix: | pesi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the working capital adjustment from a disposal group. + References No definition available. + Details
Name: | pesi_DisposalGroupWorkingCapitalAdjustment
Namespace Prefix: | pesi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the period of time an amount must stay in escrow. + References No definition available. + Details
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Namespace Prefix: | pesi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Data Type: | xbrli:stringItemType
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X
- Definition The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement maintained as reserve. This element pertains only to insurance proceeds related to investing activities. + References No definition available. + Details
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Namespace Prefix: | pesi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement that is to be used for working capital purposes. This element pertains only to insurance proceeds related to investing activities. + References No definition available. + Details
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Namespace Prefix: | pesi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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X
- Definition Amount of gross profit attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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Balance Type: | credit
Period Type: | duration

X
- Definition Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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X
- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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Balance Type: | debit
Period Type: | instant

X
- Definition The cash outflow for loan and debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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Balance Type: | credit
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X
- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains only to insurance proceeds related to investments, for example fixed assets. It excludes insurance settlements classified as operating cash flows. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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Balance Type: | debit
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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Balance Type: | debit
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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Period Type: | duration

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- Definition Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions. + References No definition available. + Details
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