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

Goodwill - Schedule of Changes in Goodwill (Detail)

v3.10.0.1

Goodwill - Schedule of Changes in Goodwill (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Goodwill [Line Items]
Balance, beginning of period before cumulative loss on impairment	$ 28,453	$ 27,642
Beginning Balance, Accumulated loss on impairment	(2,029)	(2,029)
Balance, beginning of period after cumulative loss on impairment	26,424	25,613
Balance, end of period before cumulative loss on impairment	28,818	28,453
Ending Balance, Accumulated loss on impairment	(2,029)	(2,029)
Ending period balance	26,789	26,424
Radio Stations [Member]
Goodwill [Line Items]
Acquisitions	7	14
Goodwill, Written off Related to Sale of Business Unit	(628)
FM Translators [Member]
Goodwill [Line Items]
Acquisitions	$ 986	810
Broadcast Business [Member]
Goodwill [Line Items]
Goodwill, Written off Related to Sale of Business Unit		$ (13)

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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-Publisher FASB
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-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
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- Definition

Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
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- Definition

Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Topic 350
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