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

ACQUISITIONS AND RECENT TRANSACTIONS (Summary of Business Acquisitions and Asset Purchases) (Details)

ACQUISITIONS AND RECENT TRANSACTIONS (Summary of Business Acquisitions and Asset Purchases) (Details) - USD ($) $ in Thousands															1 Months Ended	9 Months Ended
	Sep. 15, 2015	Sep. 10, 2015	Sep. 03, 2015	Sep. 01, 2015	Jul. 02, 2015	Jun. 04, 2015	May. 12, 2015	May. 07, 2015	May. 06, 2015	Apr. 07, 2015	Mar. 27, 2015	Feb. 06, 2015	Jan. 10, 2014	Dec. 10, 2013	Feb. 04, 2015	Sep. 30, 2015
Business Acquisition [Line Items]
Business acquisition, total cost																$ 13,380
KEXB-AM (formerly KMKI-AM) Dallas, Texas (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, total cost	$ 3,000
Business acquisition, date	Sep. 15, 2015
WBIX-AM (formerly WMKI-AM), Boston, Massachusetts (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, total cost		$ 500
Business acquisition, date		Sep. 10, 2015
Spanish Bible Mobile Applications (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, total cost			$ 500
Business acquisition, date			Sep. 03, 2015
Daily Bible Devotion mobile applications [Member]
Business Acquisition [Line Items]
Business acquisition, total cost				$ 1,500
Business acquisition, date				Sep. 01, 2015
DividendInvestor.com (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, total cost					$ 1,000
Business acquisition, date					Jul. 01, 2015
WPGP-AM (formerly WDDZ-AM), Pittsburgh, Pennsylvania (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, total cost							$ 1,000
Business acquisition, date							May 12, 2015
WDWD-AM, Atlanta, Georgia (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, total cost								$ 2,750
Business acquisition, date								May 07, 2015
Daily Bible Devotion (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, total cost									$ 1,242
Business acquisition, date									May 06, 2015
Gene Smart Wellness e-commerce website [Member]
Business Acquisition [Line Items]
Business acquisition, total cost						$ 100
Business acquisition, date						Jun. 04, 2015
Radio station, WDYZ-AM in Orlando, Florida (business acquisition)
Business Acquisition [Line Items]
Business acquisition, total cost											$ 1,300
Business acquisition, date											Mar. 27, 2015
Land and Studio Building, Greenville, South Carolina (asset purchase) [Member]
Business Acquisition [Line Items]
Business acquisition, total cost										$ 201
Business acquisition, date										Apr. 07, 2015
Bryan Perry Newsletters (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, total cost												$ 158			$ 600
Business acquisition, date												Feb. 06, 2015
Eagle Publishing (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, date													Jan. 10, 2014
Purchase of domain names and digital media assets (asset purchases)
Business Acquisition [Line Items]
Business acquisition, total cost																$ 129
Twitchy.com (business acquisition) [Member]
Business Acquisition [Line Items]
Business acquisition, date														Dec. 10, 2013