XML 49 R38.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Net revenues | $ 13,160 | $ 12,715 | $ 25,817 | $ 25,422
Fixed Price [Member] |  |  |  |
Net revenues | 9,864 | 9,772 | 18,913 | 19,904
Cost Reimbursement [Member] |  |  |  |
Net revenues |  |  |  |
Time and Materials [Member] |  |  |  |
Net revenues | 3,296 | 2,943 | 6,904 | 5,518
Treatment [Member] |  |  |  |
Net revenues | 9,146 | 9,630 | 18,105 | 19,665
Treatment [Member] | Fixed Price [Member] |  |  |  |
Net revenues | 9,146 | 9,630 | 18,105 | 19,665
Treatment [Member] | Cost Reimbursement [Member] |  |  |  |
Net revenues |  |  |  |
Treatment [Member] | Time and Materials [Member] |  |  |  |
Net revenues |  |  |  |
Services [Member] |  |  |  |
Net revenues | 4,014 | 3,085 | 7,712 | 5,757
Services [Member] | Fixed Price [Member] |  |  |  |
Net revenues | 718 | 142 | 808 | 239
Services [Member] | Cost Reimbursement [Member] |  |  |  |
Net revenues |  |  |  |
Services [Member] | Time and Materials [Member] |  |  |  |
Net revenues | 3,296 | 2,943 | 6,904 | 5,518
Domestic Government [Member] |  |  |  |
Net revenues | 9,276 | 9,698 | 18,929 | 19,137
Domestic Government [Member] | Treatment [Member] |  |  |  |
Net revenues | 6,011 | 7,224 | 12,546 | 14,595
Domestic Government [Member] | Services [Member] |  |  |  |
Net revenues | 3,265 | 2,474 | 6,383 | 4,542
Domestic Commercial [Member] |  |  |  |
Net revenues | 3,676 | 2,782 | 6,502 | 5,965
Domestic Commercial [Member] | Treatment [Member] |  |  |  |
Net revenues | 3,135 | 2,406 | 5,559 | 5,070
Domestic Commercial [Member] | Services [Member] |  |  |  |
Net revenues | 541 | 376 | 943 | 895
Foreign Government [Member] |  |  |  |
Net revenues | 185 | 214 | 338 | 279
Foreign Government [Member] | Treatment [Member] |  |  |  |
Net revenues |  |  |  |
Foreign Government [Member] | Services [Member] |  |  |  |
Net revenues | 185 | 214 | 338 | 279
Foreign Commercial [Member] |  |  |  |
Net revenues | 23 | 21 | 48 | 41
Foreign Commercial [Member] | Treatment [Member] |  |  |  |
Net revenues |  |  |  |
Foreign Commercial [Member] | Services [Member] |  |  |  |
Net revenues | $ 23 | $ 21 | $ 48 | $ 41

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_CostReimbursementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_TimeandMaterialsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=PESI_TreatmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=PESI_ServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=PESI_DomesticGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=PESI_DomesticCommercialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=PESI_ForeignGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=PESI_ForeignCommercialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |