XML 97 R82.htm IDEA: XBRL DOCUMENT
v3.8.0.1

FAIR VALUE MEASUREMENTS. (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Assets: |  |
Assets | $ 14,956 | $ 13,401
Liabilities: |  |
Liabilities |  | (4,766)
Warrants [Member] |  |
Liabilities: |  |
Liabilities |  | (651)
Defined Benefit Plan Assets Fixed Income [Member] |  |
Assets: |  |
Assets | $ 5,664 | $ 5,481
Liabilities: |  |
Benefit plan allocation percentage | 41.00% | 44.00%
Defined Benefit Plan Assets International Equity [Member] |  |
Assets: |  |
Assets | $ 2,528 | $ 2,006
Liabilities: |  |
Benefit plan allocation percentage | 18.00% | 16.00%
Defined Benefit Plan Assets Small/Mid U.S. Equity [Member] |  |
Assets: |  |
Assets | $ 2,018 | $ 1,802
Liabilities: |  |
Benefit plan allocation percentage | 14.00% | 15.00%
Derivative Financial Instrument [Member] |  |
Assets: |  |
Assets | $ 998 | $ 978
Liabilities: |  |
Liabilities | (2,307) | (4,115)
Defined Benefit Plan Assets Large U.S. Equity [Member] |  |
Assets: |  |
Assets | $ 3,748 | $ 3,134
Liabilities: |  |
Benefit plan allocation percentage | 27.00% | 25.00%
Level 3 [Member] |  |
Assets: |  |
Assets |  |
Liabilities: |  |
Liabilities |  | (651)
Level 3 [Member] | Warrants [Member] |  |
Liabilities: |  |
Liabilities |  | (651)
Level 3 [Member] | Defined Benefit Plan Assets Fixed Income [Member] |  |
Assets: |  |
Assets |  |
Level 3 [Member] | Defined Benefit Plan Assets International Equity [Member] |  |
Assets: |  |
Assets |  |
Level 3 [Member] | Defined Benefit Plan Assets Small/Mid U.S. Equity [Member] |  |
Assets: |  |
Assets |  |
Level 3 [Member] | Derivative Financial Instrument [Member] |  |
Assets: |  |
Assets |  |
Liabilities: |  |
Liabilities |  |
Level 3 [Member] | Defined Benefit Plan Assets Large U.S. Equity [Member] |  |
Assets: |  |
Assets |  |
Level 2 [Member] |  |
Assets: |  |
Assets | 13,958 | 12,423
Liabilities: |  |
Liabilities |  |
Level 2 [Member] | Warrants [Member] |  |
Liabilities: |  |
Liabilities |  |
Level 2 [Member] | Defined Benefit Plan Assets Fixed Income [Member] |  |
Assets: |  |
Assets | 5,664 | 5,481
Level 2 [Member] | Defined Benefit Plan Assets International Equity [Member] |  |
Assets: |  |
Assets | 2,528 | 2,006
Level 2 [Member] | Defined Benefit Plan Assets Small/Mid U.S. Equity [Member] |  |
Assets: |  |
Assets | 2,018 | 1,802
Level 2 [Member] | Derivative Financial Instrument [Member] |  |
Assets: |  |
Assets |  |
Liabilities: |  |
Liabilities |  |
Level 2 [Member] | Defined Benefit Plan Assets Large U.S. Equity [Member] |  |
Assets: |  |
Assets | 3,748 | 3,134
Level 1 [Member] |  |
Assets: |  |
Assets | 998 | 978
Liabilities: |  |
Liabilities | (2,307) | (4,115)
Level 1 [Member] | Warrants [Member] |  |
Liabilities: |  |
Liabilities |  |
Level 1 [Member] | Defined Benefit Plan Assets Fixed Income [Member] |  |
Assets: |  |
Assets |  |
Level 1 [Member] | Defined Benefit Plan Assets International Equity [Member] |  |
Assets: |  |
Assets |  |
Level 1 [Member] | Defined Benefit Plan Assets Small/Mid U.S. Equity [Member] |  |
Assets: |  |
Assets |  |
Level 1 [Member] | Derivative Financial Instrument [Member] |  |
Assets: |  |
Assets | 998 | 978
Liabilities: |  |
Liabilities | (2,307) | (4,115)
Level 1 [Member] | Defined Benefit Plan Assets Large U.S. Equity [Member] |  |
Assets: |  |
Assets |  |

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5)(i) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_WarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=peix_DefinedBenefitPlanAssetsFixedIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=peix_DefinedBenefitPlanAssetsIntlMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=peix_DefinedBenefitPlanAssetsMidMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=peix_DerivativeFinancialInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=peix_DefinedBenefitPlanAssetsLargeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |