XML 52 R34.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Acquisitions and Dispositions - Additional Information (Detail) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2017 USD ($) a | Mar. 31, 2018 USD ($) a Well | Dec. 31, 2017 USD ($) a | Dec. 31, 2016 USD ($)
Business Acquisition [Line Items] |  |  |  |
Purchase of non-controlling interests |  |  | $ 308,000 | $ 224,000
Capital expenditures, including exploration expense |  |  | 59,361,000 | 20,843,000
Proceeds from sale of property and equipment |  |  | 46,231,000 | 35,226,000
West Texas and Oklahoma [Member] | Mineral Acreage [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Proceeds from sale of property and equipment |  |  | 46,000,000 | 34,400,000
Martin County [Member] | Mineral Acreage [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Proceeds from sale of property and equipment |  |  | $ 37,400,000 |
Number of net acres sold or farmed-out leasehold rights | a |  |  | 2,096 |
OKLAHOMA | Mineral Acreage [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Proceeds from sale of property and equipment |  |  | $ 8,600,000 |
Number of net acres sold or farmed-out leasehold rights | a |  |  | 1,554 |
Upton County, Texas [Member] | Mineral Acreage [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Number of net acres acquired | a | 118 |  |  |
Capital expenditures, including exploration expense | $ 596,600 |  |  |
Partnership And Trust [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Purchase of non-controlling interests |  |  | $ 308,000 | $ 224,000
Subsequent Event [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Proceeds from sale of additional non-core acreage and properties |  | $ 1,800,000 |  |
Subsequent Event [Member] | Reagan County, Texas [Member] | Mineral Acreage [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Number of net acres acquired | a |  | 464 |  |
Number of gross mineral acres acquired | a |  | 1,640 |  |
Capital expenditures, including exploration expense |  | $ 6,080,000 |  |
Number of oil wells with working interest ownership | Well |  | 53 |  |
Number of commercial salt water disposal well operated | Well |  | 1 |  |
Subsequent Event [Member] | Reagan County, Texas [Member] | Mineral Acreage [Member] | Minimum [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of working interest ownership |  | 16.60% |  |
Subsequent Event [Member] | Reagan County, Texas [Member] | Mineral Acreage [Member] | Maximum [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Percentage of working interest ownership |  | 33.40% |  |

X
- Definition Number of commercial salt water disposal well operated. + References No definition available. + Details
Name: | pnrg_NumberOfCommercialSaltWaterDisposalWellOperated
Namespace Prefix: | pnrg_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of gross mineral acres acquired. + References No definition available. + Details
Name: | pnrg_NumberOfGrossMineralAcresAcquired
Namespace Prefix: | pnrg_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of net acres acquired. + References No definition available. + Details
Name: | pnrg_NumberOfNetAcresAcquired
Namespace Prefix: | pnrg_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of net acres sold or farmed-out leasehold rights. + References No definition available. + Details
Name: | pnrg_NumberOfNetAcresSoldOrFarmedOutLeaseholdRights
Namespace Prefix: | pnrg_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of oil wells with working interest ownership. + References No definition available. + Details
Name: | pnrg_NumberOfOilWellsWithWorkingInterestOwnership
Namespace Prefix: | pnrg_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of working interest ownership. + References No definition available. + Details
Name: | pnrg_PercentageOfWorkingInterestOwnership
Namespace Prefix: | pnrg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds from sale of additional non-core acreage and properties. + References No definition available. + Details
Name: | pnrg_ProceedsFromSaleOfAdditionalNoncoreAcreageAndProperties
Namespace Prefix: | pnrg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests). + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569655-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4616395-111683 + Details
Name: | us-gaap_MinorityInterestDecreaseFromRedemptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow to purchase long lived physical asset for use in the normal oil and gas operations and to purchase mineral interests in oil and gas properties not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireOilAndGasPropertyAndEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=pnrg_WestTexasAndOklahomaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_MiningPropertiesAndMineralRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=pnrg_MartinCountyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=stpr_OK
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=pnrg_UptonCountyTexasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=pnrg_PartnershipAndTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=pnrg_ReaganCountyTexasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |