Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.8.0.1
Document And Entity Information - shares
3 Months Ended
Mar. 31, 2018
May 04, 2018
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q1  
Entity Registrant Name SALEM MEDIA GROUP, INC. /DE/  
Entity Central Index Key 0001050606  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Trading Symbol SALM  
Common Class A [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   20,622,926
Common Class B [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   5,553,696