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

Recent Transactions - Pending Transactions - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Aug. 01, 2022	Jun. 29, 2023	Dec. 31, 2022	Jun. 30, 2022
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Asset held-for-sale, not part of disposal group current	$ 1,267			$ 267
Sacramento Ca [Member] \| KSAC FM [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Gain loss on discontined operatiions from disposal pre tax value	3,300
Disposal group including discontinued operations cash consideration			$ 1,000
Radio StationWLCCAMand FM translator [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Asset held-for-sale, not part of disposal group current	$ 1,000
Radio station K S K Y A M [Member] \| WASHINGTON
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Proceeds from sale of real estate		$ 700
Radio Station KKOL In Seattle [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Asset held-for-sale, not part of disposal group current					$ 300