Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS AND RECENT TRANSACTIONS (Schedule of Dividend Distributions) (Details)

v2.4.1.9
ACQUISITIONS AND RECENT TRANSACTIONS (Schedule of Dividend Distributions) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Mar. 06, 2014
Mar. 18, 2013
May 27, 2014
May 30, 2013
Sep. 02, 2014
Sep. 12, 2013
Dec. 02, 2014
Nov. 20, 2013
Summary Of Investments Other Than Investments In Related Parties Reportable Data [Line Items]                      
Class A and Class B common stock, dividend declared per share, paid $ 0.24us-gaap_CommonStockDividendsPerShareCashPaid $ 0.21us-gaap_CommonStockDividendsPerShareCashPaid $ 0.14us-gaap_CommonStockDividendsPerShareCashPaid                
Class A and Class B common stock, dividend paid $ 6,183us-gaap_PaymentsOfDividendsCommonStock $ 5,158us-gaap_PaymentsOfDividendsCommonStock $ 3,412us-gaap_PaymentsOfDividendsCommonStock                
First Quarter Dividend [Member]                      
Summary Of Investments Other Than Investments In Related Parties Reportable Data [Line Items]                      
Class A and Class B common stock, dividend declared date       Mar. 06, 2014 Mar. 18, 2013            
Class A and Class B common stock, record date       Mar. 17, 2014 Mar. 25, 2013            
Class A and Class B common stock, payment date       Mar. 31, 2014 Apr. 01, 2013            
Class A and Class B common stock, dividend declared per share       $ 0.0575us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= salm_FirstQuarterDividendMember
$ 0.0500us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= salm_FirstQuarterDividendMember
           
Class A and Class B common stock, dividend declared per share, paid       $ 0.0575us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= salm_FirstQuarterDividendMember
$ 0.0500us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= salm_FirstQuarterDividendMember
           
Class A and Class B common stock, dividend paid       1,444us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_DividendsAxis
= salm_FirstQuarterDividendMember
1,234us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_DividendsAxis
= salm_FirstQuarterDividendMember
           
Second Quarter Dividend [Member]                      
Summary Of Investments Other Than Investments In Related Parties Reportable Data [Line Items]                      
Class A and Class B common stock, dividend declared date           May 27, 2014 May 30, 2013        
Class A and Class B common stock, record date           Jun. 16, 2014 Jun. 14, 2013        
Class A and Class B common stock, payment date           Jun. 30, 2014 Jun. 28, 2013        
Class A and Class B common stock, dividend declared per share           $ 0.0600us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= salm_SecondQuarterDividendMember
$ 0.0500us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= salm_SecondQuarterDividendMember
       
Class A and Class B common stock, dividend declared per share, paid           $ 0.0600us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= salm_SecondQuarterDividendMember
$ 0.0500us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= salm_SecondQuarterDividendMember
       
Class A and Class B common stock, dividend paid           1,514us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_DividendsAxis
= salm_SecondQuarterDividendMember
1,240us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_DividendsAxis
= salm_SecondQuarterDividendMember
       
Third Quarter Dividend [Member]                      
Summary Of Investments Other Than Investments In Related Parties Reportable Data [Line Items]                      
Class A and Class B common stock, dividend declared date               Sep. 02, 2014 Sep. 12, 2013    
Class A and Class B common stock, record date               Sep. 16, 2014 Sep. 26, 2013    
Class A and Class B common stock, payment date               Sep. 30, 2014 Oct. 04, 2013    
Class A and Class B common stock, dividend declared per share               $ 0.0625us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= salm_ThirdQuarterDividendMember
$ 0.0525us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= salm_ThirdQuarterDividendMember
   
Class A and Class B common stock, dividend declared per share, paid               $ 0.0625us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= salm_ThirdQuarterDividendMember
$ 0.0525us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= salm_ThirdQuarterDividendMember
   
Class A and Class B common stock, dividend paid               1,579us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_DividendsAxis
= salm_ThirdQuarterDividendMember
1,308us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_DividendsAxis
= salm_ThirdQuarterDividendMember
   
Fourth Quarter Dividend [Member]                      
Summary Of Investments Other Than Investments In Related Parties Reportable Data [Line Items]                      
Class A and Class B common stock, dividend declared date                   Dec. 02, 2014 Nov. 20, 2013
Class A and Class B common stock, record date                   Dec. 15, 2014 Dec. 10, 2013
Class A and Class B common stock, payment date                   Dec. 29, 2014 Dec. 27, 2013
Class A and Class B common stock, dividend declared per share                   $ 0.0650us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= salm_FourthQuarterDividendMember
$ 0.0550us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= salm_FourthQuarterDividendMember
Class A and Class B common stock, dividend declared per share, paid                   $ 0.0650us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= salm_FourthQuarterDividendMember
$ 0.0550us-gaap_CommonStockDividendsPerShareCashPaid
/ us-gaap_DividendsAxis
= salm_FourthQuarterDividendMember
Class A and Class B common stock, dividend paid                   $ 1,646us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_DividendsAxis
= salm_FourthQuarterDividendMember
$ 1,376us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_DividendsAxis
= salm_FourthQuarterDividendMember