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Additional Balance Sheet Information - Components of Balance Sheet Amounts (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Accounts Receivable: |  |
Joint interest billings | $ 2,882 us-gaap_OilAndGasJointInterestBillingReceivablesCurrent | $ 6,287 us-gaap_OilAndGasJointInterestBillingReceivablesCurrent
Trade receivables | 1,980 us-gaap_TradeReceivablesHeldForSaleNet | 2,014 us-gaap_TradeReceivablesHeldForSaleNet
Oil and gas sales | 6,245 pnrg_AccountsReceivableOilAndGasSalesCurrent | 9,604 pnrg_AccountsReceivableOilAndGasSalesCurrent
Other | 1,751 us-gaap_OtherReceivablesNetCurrent | 122 us-gaap_OtherReceivablesNetCurrent
Accounts Receivable, Gross | 12,858 us-gaap_AccountsReceivableGrossCurrent | 18,027 us-gaap_AccountsReceivableGrossCurrent
Less: Allowance for doubtful accounts | (543)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent | (334)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Total | 12,315 us-gaap_AccountsReceivableNetCurrent | 17,693 us-gaap_AccountsReceivableNetCurrent
Accounts Payable: |  |
Trade | 3,995 us-gaap_AccountsPayableTradeCurrent | 1,596 us-gaap_AccountsPayableTradeCurrent
Royalty and other owners | 8,444 pnrg_AccountsPayableRoyaltyAndOtherOwnersCurrent | 7,391 pnrg_AccountsPayableRoyaltyAndOtherOwnersCurrent
Partner advances | 1,344 pnrg_AccountsPayablePartnerAdvances | 3,378 pnrg_AccountsPayablePartnerAdvances
Prepaid drilling deposits | 786 pnrg_AccountsPayablePrepaidDrillingDepositsCurrent | 978 pnrg_AccountsPayablePrepaidDrillingDepositsCurrent
Other | 1,689 us-gaap_AccountsPayableOtherCurrent | 2,906 us-gaap_AccountsPayableOtherCurrent
Total | 16,258 us-gaap_AccountsPayableCurrent | 16,249 us-gaap_AccountsPayableCurrent
Accrued Liabilities: |  |
Compensation and related expenses | 2,350 us-gaap_AccruedEmployeeBenefitsCurrent | 3,062 us-gaap_AccruedEmployeeBenefitsCurrent
Property costs | 9,204 pnrg_AccruedLiabilitiesPropertyCostsCurrent | 3,119 pnrg_AccruedLiabilitiesPropertyCostsCurrent
Income tax | 554 us-gaap_AccruedIncomeTaxesCurrent | 268 us-gaap_AccruedIncomeTaxesCurrent
Other | 293 us-gaap_OtherAccruedLiabilitiesCurrent | 383 us-gaap_OtherAccruedLiabilitiesCurrent
Total | $ 12,401 us-gaap_AccruedLiabilitiesCurrent | $ 6,832 us-gaap_AccruedLiabilitiesCurrent

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- Definition Current portion of accounts receivable attributable to joint interest partners in oil and gas properties. These are billings to the non-operators associated with the operation of wells and are based on those owners' working interests in the wells. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 323 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6474814&loc=d3e64006-109457 + Details
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