Salem Media Group, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- Business and Basis of Presentation (Policies)
Notes Tables
Notes Details

Recent Transactions - Pending Transactions -Additional Information (Detail)

v3.21.2

Recent Transactions - Pending Transactions -Additional Information (Detail) - USD ($) $ in Millions			3 Months Ended	9 Months Ended
	Aug. 31, 2021	Aug. 23, 2021	Sep. 30, 2021	Sep. 30, 2021	Jun. 07, 2021	Jun. 02, 2021
FL \| Agreement Seventy Seven Acres Of Land [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Proceeds from sale of real estate		$ 13.5
Denver [Member] \| Agreement Sell Nine Point Three Acres Of Land [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Proceeds from sale of real estate	$ 8.2
Radio Stations [member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Pretax loss on sale of assets			$ 1.4	$ 0.4
Radio Stations [member] \| Maximum [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Pretax loss on sale of assets				$ 1.8
Radio Station KKOL In Seattle [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Escrow Deposit					$ 0.1
Payable for asset acquistion						$ 0.5

- Definition

Payable for asset acquistion.

+ References

No definition available.

+ Details

Name:	salm_PayableForAssetAcquistion
Namespace Prefix:	salm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	srt_SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesReportableDataLineItems
Namespace Prefix:	srt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 440
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629

+ Details

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

- Definition

Amount of gain (loss) on sale or disposal of assets utilized in financial service operations.

+ References

No definition available.

+ Details

Name:	us-gaap_GainsLossesOnSalesOfAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash received for the sale of real estate that is not part of an investing activity during the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585

+ Details

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

- Details

Name:	srt_StatementGeographicalAxis=stpr_FL
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	salm_AgreementAxis=salm_AgreementSeventySevenAcresOfLandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=salm_DenverMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	salm_AgreementAxis=salm_AgreementSellNinePointThreeAcresOfLandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=salm_RadioStationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_BusinessAcquisitionAxis=salm_RadioStationKkolInSeattleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: