XML 41 R20.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Note 2 - Summary of Significant Accounting Policies (Details Textual) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares | 0 |  |
Number Of Counties In Which Entity Operates | 593 |  |
Number of States in which Entity Operates | 28 |  |
Accounts Receivable, Allowance for Credit Loss, Current | $ 0 |  |
Future Net Revenues To Proved Oil And Natural Gas Reserves Discount Percentage | 10 |  |
Impairment of Oil and Gas Properties | $ 0 | $ 0 | $ 0
Gain (Loss) Recognition Upon Disposition of Oil and Gas, Minimum Percent of Reserves | 25 |  |
Texas Franchise Tax Rate | 0.75 |  |
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Royalty [Member] | Pioneer Natural Resources [Member] |  |  |
Concentration Risk, Percentage | 11 | 12 | 13
Royalty Revenue [Member] |  |  |
Revenue Allocated To General Partner Percentage | 4 |  |
Net Profits Interests [Member] |  |  |
Revenue Allocated To General Partner Percentage | 1 |  |

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References No definition available. + Details
Name: | dmlp_ConcentrationRiskPercentage2
Namespace Prefix: | dmlp_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition The discount percentage for future net revenues to proved oil and natural gas reserves. + References No definition available. + Details
Name: | dmlp_FutureNetRevenuesToProvedOilAndNaturalGasReservesDiscountPercentage
Namespace Prefix: | dmlp_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gain or loss recognition upon disposition of oil and gas involving greater than the stated percentage of reserves. + References No definition available. + Details
Name: | dmlp_GainLossRecognitionUponDispositionOfOilAndGasMinimumPercentOfReserves
Namespace Prefix: | dmlp_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of counties the entity operates in. + References No definition available. + Details
Name: | dmlp_NumberOfCountiesInWhichEntityOperates
Namespace Prefix: | dmlp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage of revenue allocated to the general partner. + References No definition available. + Details
Name: | dmlp_RevenueAllocatedToGeneralPartnerPercentage
Namespace Prefix: | dmlp_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the Texas franchise tax rate. + References No definition available. + Details
Name: | dmlp_TexasFranchiseTaxRate
Namespace Prefix: | dmlp_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of allowance for credit loss on accounts receivable, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-4 + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -Section 35 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482450/932-360-35-11 + Details
Name: | us-gaap_ImpairmentOfOilAndGasProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CustomerConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_RoyaltyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=dmlp_RoyaltyRevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=dmlp_NetProfitsInterestsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |