XML 46 R34.htm IDEA: XBRL DOCUMENT
v3.21.2

Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | $ 16,145 | $ 22,047 | $ 39,278 | $ 46,907
Domestic Government [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 12,403 | 18,846 | 29,662 | 40,334
Domestic Commercial [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 2,451 | 2,216 | 5,309 | 4,551
Foreign Government [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 1,268 | 965 | 4,166 | 1,979
Foreign Commercial [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 23 | 20 | 141 | 43
Treatment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 7,706 | 7,840 | 15,201 | 17,403
Treatment [Member] | Domestic Government [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 5,639 | 6,055 | 10,237 | 13,745
Treatment [Member] | Domestic Commercial [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 2,060 | 1,785 | 4,328 | 3,658
Treatment [Member] | Foreign Government [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 7 |  | 541 |
Treatment [Member] | Foreign Commercial [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues |  |  | 95 |
Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 8,439 | 14,207 | 24,077 | 29,504
Services [Member] | Domestic Government [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 6,764 | 12,791 | 19,425 | 26,589
Services [Member] | Domestic Commercial [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 391 | 431 | 981 | 893
Services [Member] | Foreign Government [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 1,261 | 965 | 3,625 | 1,979
Services [Member] | Foreign Commercial [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 23 | 20 | 46 | 43
Fixed Price [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 9,188 | 10,169 | 19,264 | 21,124
Fixed Price [Member] | Treatment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 7,706 | 7,840 | 15,201 | 17,403
Fixed Price [Member] | Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 1,482 | 2,329 | 4,063 | 3,721
Time and Materials [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | 6,957 | 11,878 | 20,014 | 25,783
Time and Materials [Member] | Treatment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues |  |  |  |
Time and Materials [Member] | Services [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net revenues | $ 6,957 | $ 11,878 | $ 20,014 | $ 25,783

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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: |

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: | us-gaap_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember
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: |