Quarterly report pursuant to Section 13 or 15(d)

LONG TERM DEBT (Details Textual)

v3.5.0.2
LONG TERM DEBT (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2016
Jun. 30, 2016
Mar. 17, 2016
Sep. 30, 2013
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Mar. 27, 2013
Mar. 14, 2013
Interest Expense, Debt         $ 140,000 $ 139,000 $ 423,000 $ 418,000      
Amortization of Financing Costs             475,000 471,000      
Interest Rate Swap [Member]                      
Derivative, Notional Amount $ 150,000,000       $ 150,000,000   $ 150,000,000     $ 150,000,000  
Derivative, Floor Interest Rate 0.625%       0.625%   0.625%        
Derivative, Fixed Interest Rate 1.645%       1.645%   1.645%        
Revolving Credit Facility [Member]                      
Line of Credit Facility, Covenant Terms             With respect to financial covenants, the credit agreement includes a minimum interest coverage ratio, which started at 1.50 to 1.0 and stepped up to 2.50 to 1.0 and a maximum leverage ratio, which started at 6.75 to 1.0 and steps down to 5.75 to 1.0 by 2017. The credit agreement also includes other negative covenants that are customary for credit facilities of this type, including covenants that, subject to exceptions described in the credit agreement, restrict the ability of Salem and its subsidiary guarantors        
Leverage Ratio 5.29%       5.29%   5.29%        
Revolving Credit Facility [Member] | Maximum [Member]                      
Interest Coverage Ratio 3.40%       3.40%   3.40%        
Leverage Ratio 6.00%       6.00%   6.00%        
Revolving Credit Facility [Member] | Minimum [Member]                      
Interest Coverage Ratio 2.50%       2.50%   2.50%        
Term B Loan [Member]                      
Line of Credit Facility, Maximum Borrowing Capacity $ 269,000,000       $ 269,000,000   $ 269,000,000       $ 300,000,000
Senior Notes, Noncurrent                     298,500,000
Interest Expense, Debt         $ 51,000 47,000 $ 155,000 140,000      
Amortization of Financing Costs $ 14,000 $ 3,400 $ 6,700                
Floor Rate On Term Loan             1.00%        
Line Of Credit Default Rate Above Applicable Interest Rate 2.00%       2.00%   2.00%        
Proceeds from Issuance of Debt             $ 60,000,000        
Debt Instrument, Periodic Payment, Principal       $ 750,000              
Line of Credit Facility, Expiration Period             7 years        
Debt Instrument Interest Additional Interest Above Prime Rate             2.50%        
Debt Instrument Interest Additional Interest Above London Interbank Offered Rate             3.50%        
Debt Instrument, Interest Rate, Stated Percentage 4.78%       4.78%   4.78%   4.78%    
Revolver [Member]                      
Line of Credit Facility, Maximum Borrowing Capacity $ 1,100,000       $ 1,100,000   $ 1,100,000       $ 25,000,000
Amortization of Financing Costs         $ 52,000 $ 17,000 $ 52,000 $ 17,000      
Debt Instrument Interest Additional Interest Above Base Rate             2.00%        
Debt Instrument, Interest Rate, Effective Percentage 5.07%       5.07%   5.07%        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage             0.50%        
Line of Credit Facility, Expiration Period             5 years        
Debt Instrument Interest Additional Interest Above Prime Rate             2.50%        
Debt Instrument Interest Additional Interest Above London Interbank Offered Rate             3.00%        
Debt Instrument, Interest Rate, Stated Percentage 4.58%       4.58%   4.58%        
Deferred Financing Cost Amortization Period             5 years