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

Quarterly report pursuant to Section 13 or 15(d)

Significant Transactions - Additional Information (Detail)

Significant Transactions - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended				3 Months Ended			6 Months Ended		1 Months Ended		6 Months Ended													1 Months Ended
	May 30, 2013	May 30, 2013	Mar. 14, 2013	Mar. 18, 2013	Mar. 31, 2012	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 28, 2013 9 5/8% Senior Secured Second Lien Notes	Mar. 14, 2013 9 5/8% Senior Secured Second Lien Notes	Jun. 30, 2013 9 5/8% Senior Secured Second Lien Notes	Jun. 03, 2013 9 5/8% Senior Secured Second Lien Notes	Dec. 31, 2012 9 5/8% Senior Secured Second Lien Notes	Dec. 12, 2012 9 5/8% Senior Secured Second Lien Notes	Jun. 01, 2012 9 5/8% Senior Secured Second Lien Notes	Dec. 12, 2011 9 5/8% Senior Secured Second Lien Notes	Sep. 06, 2011 9 5/8% Senior Secured Second Lien Notes	Jun. 01, 2011 9 5/8% Senior Secured Second Lien Notes	Dec. 01, 2010 9 5/8% Senior Secured Second Lien Notes	Jun. 01, 2010 9 5/8% Senior Secured Second Lien Notes	Dec. 31, 2009 9 5/8% Senior Secured Second Lien Notes	Mar. 14, 2013 Revolver	Feb. 15, 2013 WJKR-FM, Columbus, Ohio	Feb. 05, 2013 WMUU-FM, Greenville, South Carolina
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Debt, issuance of principal amount											$ 300,000,000												$ 300,000,000
Repayment of Term Loan B											4,000,000
Loss on early retirement of long-term debt			33,000			(55,000)		(893,000)	(27,776,000)	(893,000)	14,000	26,900,000	900,000
Class A and Class B common stock, dividend declared date	May 30, 2013	May 30, 2013		Mar. 18, 2013	Mar. 07, 2012				Mar. 18, 2013
Class A and Class B common stock, dividend declared per share	$ 0.05	$ 0.05		$ 0.05	$ 0.035				$ 0.05
Class A and Class B common stock, dividend paid	1,200						1,200		2,474,000	1,704,000
Class A and Class B common stock, payment date	Jun. 28, 2013					Jun. 28, 2013	Apr. 01, 2013
Class A and Class B common stock, record date	Jun. 14, 2013					Jun. 14, 2013	Mar. 25, 2013
Class A and Class B common stock, dividend declared per share, paid	$ 0					$ 0.05	$ 0.05	$ 0.04	$ 0.10	$ 0.07
Senior secured credit facility																								25,000,000
Debt, interest rate						9.625%		9.625%	9.625%	9.625%			9.625%
Debt, maturity year						2016			2016				2016		2016
Principal repurchased or redeemed												212,597,000		903,000		4,000,000	17,500,000	12,500,000	5,000,000	17,500,000	12,500,000	17,500,000
Debt, aggregate purchase price												240,300,000
Percent of debt purchase price												110.65%
Amount paid for redemption												22,700,000
Unamortized Discount												837,000		3,000		17,000	80,000	62,000	26,000	93,000	70,000	105,000
Bond Issue Costs												2,867,000				57,000	287,000	337,000	135,000	472,000	334,000	417,000
Business acquisition purchase price						9,427,000			9,427,000																4,000,000
Business acquisition purchase price										(165,000)																5,400,000
Amount due on close of Transaction																										1,000,000
Amount payable																										2,000,000
Advertising cost																										3,000,000
Acquisition payment date																										2014-04
Discount on advertising credits									600,000
Fair value of advertising credits payable over ten years						$ 2,400,000			$ 2,400,000
Advertising credits payable term									Ten
Amortization period of interest expense									10 years