v3.25.1

Subsequent Events (Narrative) (Details) $ in Thousands		3 Months Ended
Subsequent Events (Narrative) (Details) $ in Thousands	Apr. 17, 2025 USD ($) item	Jun. 30, 2025 USD ($)	Apr. 15, 2025 USD ($)
Subsequent Event [Member] \| North Plant Property [Member]
Subsequent Event [Line Items]
Escrow funds received			$ 600
Subsequent Event [Member] \| Pension Plans Annuity Contract [Member]
Subsequent Event [Line Items]
Number of participants and beneficiaries covered in contract \| item	1,300
Pension Plans' assets used to fund purchase of group annuity contract	$ 132,000
Cash used to fund purchase of group annuity contract	$ 10,000
Minimum [Member] \| Forecast [Member] \| Pension Plans Annuity Contract [Member]
Subsequent Event [Line Items]
Recognized one-time non-cash pre-tax pension settlement		$ 33,000
Maximum [Member] \| Forecast [Member] \| Pension Plans Annuity Contract [Member]
Subsequent Event [Line Items]
Recognized one-time non-cash pre-tax pension settlement		$ 37,000

Cash Used To Fund Purchase Of Group Annuity Contract

+ References

No definition available.

+ Details

Name:	daln_CashUsedToFundPurchaseOfGroupAnnuityContract
Namespace Prefix:	daln_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number Of Participants And Beneficiaries Covered In Contract

+ References

No definition available.

+ Details

Name:	daln_NumberOfParticipantsAndBeneficiariesCoveredInContract
Namespace Prefix:	daln_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Pension Plans' Assets Used To Fund Purchase Of Group Annuity Contract

+ References

No definition available.

+ Details

Name:	daln_PensionPlansAssetsUsedToFundPurchaseOfGroupAnnuityContract
Namespace Prefix:	daln_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
-SubTopic 440
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478522/954-440-50-1

+ Details

Name:	us-gaap_EscrowDeposit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of cost (reversal of cost) for pension benefits. Excludes other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 48
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-48

+ Details

Name:	us-gaap_PensionExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Details

Name:	us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=daln_NorthPlantPropertyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanTypeAxis=daln_PensionPlansAnnuityContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DallasNews Corp 10-Q