Quarterly report pursuant to Section 13 or 15(d)

ACQUISITIONS AND RECENT TRANSACTIONS (Narrative) (Details)

v2.4.1.9
ACQUISITIONS AND RECENT TRANSACTIONS (Narrative) (Details) (USD $)
3 Months Ended 0 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Jan. 30, 2015
Dec. 31, 2014
Nov. 28, 2014
Sep. 29, 2014
Mar. 31, 2014
Dec. 30, 2013
Sep. 30, 2013
Jun. 28, 2013
Mar. 31, 2015
Mar. 05, 2015
Mar. 27, 2015
Feb. 06, 2015
Feb. 20, 2015
May 07, 2015
Apr. 01, 2015
Mar. 14, 2013
Dec. 10, 2013
Jan. 10, 2014
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Loss on early retirement of long-term debt $ (41,000)us-gaap_GainsLossesOnExtinguishmentOfDebt $ (8,000)us-gaap_GainsLossesOnExtinguishmentOfDebt                                    
Amortization of bond issue costs and bank loan fees 158,000us-gaap_AmortizationOfFinancingCosts 172,000us-gaap_AmortizationOfFinancingCosts                                    
Class A and Class B common stock, dividend paid 1,647,000us-gaap_PaymentsOfDividendsCommonStock 1,444,000us-gaap_PaymentsOfDividendsCommonStock                                    
Purchase price 1,580,000us-gaap_BusinessCombinationConsiderationTransferred1                                      
Goodwill 24,690,000us-gaap_Goodwill     24,684,000us-gaap_Goodwill             24,690,000us-gaap_Goodwill                  
Acquisition-related expenses 100,000us-gaap_BusinessCombinationAcquisitionRelatedCosts 200,000us-gaap_BusinessCombinationAcquisitionRelatedCosts                                    
Term Loan B [Member]                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Repayment of Term Loan B     2,000,000us-gaap_PaymentsForLoans
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
4,000,000us-gaap_PaymentsForLoans
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
4,000,000us-gaap_PaymentsForLoans
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
5,000,000us-gaap_PaymentsForLoans
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
2,250,000us-gaap_PaymentsForLoans
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
750,000us-gaap_PaymentsForLoans
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
4,000,000us-gaap_PaymentsForLoans
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
4,000,000us-gaap_PaymentsForLoans
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
                   
Debt, issuance of principal amount     300,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
                                 
Loss on early retirement of long-term debt     15,000us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
                                 
Amortization of bond issue costs and bank loan fees 27,000us-gaap_AmortizationOfFinancingCosts
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
27,000us-gaap_AmortizationOfFinancingCosts
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
27,000us-gaap_AmortizationOfFinancingCosts
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
                                 
Credit facility, borrowing capacity 274,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
                  274,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
            300,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= salm_TermBLoanMember
   
Revolver [Member]                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Credit facility, borrowing capacity 500,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= salm_RevolverMember
                  500,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= salm_RevolverMember
            25,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= salm_RevolverMember
   
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. 05, 2015                  
Class A and Class B common stock, dividend declared per share                       $ 0.0650us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= salm_FirstQuarterDividendMember
               
Class A and Class B common stock, dividend paid                       1,600,000us-gaap_PaymentsOfDividendsCommonStock
/ us-gaap_DividendsAxis
= salm_FirstQuarterDividendMember
               
Class A and Class B common stock, payment date                     Mar. 31, 2015                  
Class A and Class B common stock, record date                     Mar. 17, 2015                  
Twitchy.com (business acquisition) [Member]                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Estimated fair value of contingent earn-out consideration 500,000us-gaap_BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionThirteenMember
                  500,000us-gaap_BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionThirteenMember
              600,000us-gaap_BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionThirteenMember
 
Eagle Publishing (business acquisition) [Member]                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Estimated fair value of contingent earn-out consideration 1,800,000us-gaap_BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionTwentyEightMember
                  1,800,000us-gaap_BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionTwentyEightMember
                2,000,000us-gaap_BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionTwentyEightMember
Radio station, WDYZ-AM in Orlando, Florida (business acquisition)                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Acquisition date                         Mar. 27, 2015              
Purchase price                         1,300,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionThirtyFiveMember
             
Goodwill                         3,200us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionThirtyFiveMember
             
Bryan Perry's Cash Machine and Premium Income (business acquisition) [Member]                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Acquisition date                           Feb. 06, 2015            
Purchase price                           158,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionThirtyNineMember
           
Goodwill                           2,600us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionThirtyNineMember
           
Contingent earn-out consideration achievement of milestone period                           2 years            
Percentage of amount payable to seller                           50.00%salm_PercentageOfAmountPayableToSeller
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionThirtyNineMember
           
Estimated fair value of contingent earn-out consideration                           158,000us-gaap_BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognized
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionThirtyNineMember
           
Radio station, WDDZ-AM in Pittsburg, Pennsylvania                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Acquisition date                             Feb. 20, 2015          
Purchase price                             1,000,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionFortyMember
         
Business acquisition purchase price                             1,000,000salm_BusinessAcquisitionCostOfAcquiredEntityCashPaidNet
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionFortyMember
         
Purchases of domain names (asset purchases)                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Purchase price 122,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionTwentyNineMember
                                     
Radio station WDWD-AM in Atlanta, Georgia                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Acquisition date                             Feb. 20, 2015          
Purchase price                             2,800,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionFortyOneMember
         
Business acquisition purchase price                             2,800,000salm_BusinessAcquisitionCostOfAcquiredEntityCashPaidNet
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionFortyOneMember
         
Radio station WDWD-AM in Atlanta, Georgia | Subsequent Event [Member]                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Acquisition date                               May 07, 2015        
Business acquisition purchase price                               2,800,000salm_BusinessAcquisitionCostOfAcquiredEntityCashPaidNet
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionFortyOneMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
       
Radio station KKSP-FM in Little Rock, Arkansas [Member] | Subsequent Event [Member]                                        
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]                                        
Acquisition date                                 Apr. 01, 2015      
Business acquisition purchase price                                 $ 1,500,000salm_BusinessAcquisitionCostOfAcquiredEntityCashPaidNet
/ us-gaap_BusinessAcquisitionAxis
= salm_BusinessAcquisitionFortyTwoMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember