ACQUISITIONS AND RECENT TRANSACTIONS (Details Textual) - USD ($) | Jun. 10, 2016 | Jun. 08, 2016 | Jun. 03, 2016 | May 13, 2016 | May 02, 2016 | Apr. 02, 2016 | Mar. 08, 2016 | Jun. 30, 2016 | Jun. 20, 2016 | Apr. 29, 2016 | Mar. 31, 2016 | Mar. 17, 2016 | Jan. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Jun. 15, 2016 | Jun. 02, 2016 | May 25, 2016 | May 18, 2016 | May 17, 2016 | Dec. 31, 2015 | May 06, 2015 |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Payments for Loans | | | | | | | | | | | $ 750,000 | $ 809,000 | $ 2,000,000 | | | | | | | | | | | |
Gains (Losses) on Extinguishment of Debt, Total | | | | | | | | | | | | | | $ (5,000) | $ 0 | $ (14,000) | $ (41,000) | | | | | | | |
Amortization of Financing Costs | | | | | | | | | | | | | | | | 318,000 | 314,000 | | | | | | | |
Dividends Payable, Date Declared | | | | | | | | Jun. 2, 2016 | | | Mar. 10, 2016 | | | | | | | | | | | | | |
Common Stock, Dividends, Per Share, Declared | | | | | | | | $ 0.0650 | | | $ 0.0650 | | | | | | | | | | | | | |
Payments of Ordinary Dividends, Common Stock | | | | | | | | $ 1,600,000 | | | $ 1,700,000 | | | | | 3,321,000 | 3,301,000 | | | | | | | |
Dividends Payable, Date to be Paid | | | | | | | | Jun. 30, 2016 | | | Apr. 5, 2016 | | | | | | | | | | | | | |
Dividends Payable, Date of Record | | | | | | | | Jun. 16, 2016 | | | Mar. 22, 2016 | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | 4,824,000 | | | | | | | | |
Goodwill | | | | | | | | $ 24,793,000 | | | | | | 24,793,000 | | 24,793,000 | | | | | | | $ 24,563,000 | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents | | | | | | | $ 1,300,000 | | | | | | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | | | | | | | 600,000 | | | | | | | | | | | | | | | | | |
Business Acquisition Purchase Price Allocation Deferred Revenue | | | | | | | | 565,000 | | | | | | 565,000 | | 565,000 | | | | | | | | |
Local Marketing Agreements [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Payments For Marketing Agreements Security Deposit | | | | | | | | | | | | | | 55,000 | | | | | | | | | | |
National Park Service [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Proceeds from Sale of Other Assets | | | | | | | | | | | | | | 2,500,000 | | | | | | | | | | |
Gain (Loss) on Disposition of Other Assets | | | | | | | | | | | | | | 1,900,000 | | | | | | | | | | |
Lessee Leasing Arrangements, Operating Leases, Term of Contract | | | | | | | | | | | | | | | 20 years | | | | | | | | | |
King James Bible Mobile Applications [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | 600,000 | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities, Total | | | | | | | 4,000,000 | | | | | | | | | | | | | | | | | |
Goodwill | | | | | | | 200,000 | | | | | | | | | | | | | | | | | |
Payments to Acquire Businesses, Gross | | | | | | | 2,700,000 | | | | | | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents | | | | | | | | | | | | | | | | | | | | | | $ 300,000 | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables | | | | | | | 300,000 | | | | | | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | | | | | | | $ 200,000 | | | | | | | | | | | | | | | | | |
Term B Loan [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Payments for Loans | | | | | | | | 1,200,000 | | | $ 800,000 | 800,000 | | | | | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | 300,000,000 | | | | | | 300,000,000 | | 300,000,000 | | | | | | | | |
Gains (Losses) on Extinguishment of Debt, Total | | | | | | | | 1,300 | | | | 2,500 | | | | | | | | | | | | |
Amortization of Financing Costs | | | | | | | | 3,400 | | | | $ 6,700 | | | | | | | | | | | | |
Early Repayments of Debt, Principal Payments | | | | | | | | 400,000 | | | | | | | | | | | | | | | | |
Time Brokerage Agreement [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Assets Arising from Contingencies, Amount Recognized | | | | | | | | 1,200,000 | | | | | | 1,200,000 | | 1,200,000 | | | | | | | | |
Domain names and mobile applications for Daily Bible Devotion [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | 6,000 | | | | | | | | |
Business Acquisition Cost Of Acquired Entity Cash Paid Net | | | | | | | | | | | | | | | | | | | | | | | | $ 1,100,000 |
Radio station KEXB-AM in Dallas, Texas [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | $ 100,000 | $ 200,000 | | | | | | | |
Asset Purchase Agreement One [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition Cost Of Acquired Entity Cash Paid Net | | | | | | | | | | | | | | | | | | $ 77,000 | | | | | | |
Asset Purchase Agreement Two [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition Cost Of Acquired Entity Cash Paid Net | | | | | | | | | | | | | | | | | | | $ 35,000 | | | | | |
Asset Purchase Agreement Three [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition Cost Of Acquired Entity Cash Paid Net | | | | | | | | | | | | | | | | | | | | $ 65,000 | | | | |
Asset Purchase Agreement Four [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition Cost Of Acquired Entity Cash Paid Net | | | | | | | | | | | | | | | | | | | | | $ 65,000 | | | |
FM Translator, Columbus, Ohio Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | Jun. 20, 2016 | | | | | | | Jun. 20, 2016 | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | $ 345,000 | | | | | | | | |
FM Translator, Amherst, New York Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | Jun. 10, 2016 | | | | | | | | | | | | | | | Jun. 10, 2016 | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | $ 60,000 | | | | | | | | |
FM Translator construction permit, Charlotte, Michigan asset purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | Jun. 8, 2016 | | | | | | | | | | | | | | Jun. 8, 2016 | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | $ 50,000 | | | | | | | | |
FM Translator construction permit, Atwood, Kentucky asset purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | Jun. 3, 2016 | | | | | | | | | | | | | Jun. 3, 2016 | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | $ 88,000 | | | | | | | | |
FM Translator construction permit, Kerrville, Texas asset purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | May 13, 2016 | | | | | | | | | | | | May 13, 2016 | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | $ 50,000 | | | | | | | | |
FM Translator, Lincoln, Maine Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | May 2, 2016 | | | | | | | | | | | May 2, 2016 | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | $ 100,000 | | | | | | | | |
FM Translator construction permit, Emporia, Kansas asset purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | Apr. 29, 2016 | | | | | | Apr. 29, 2016 | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | $ 25,000 | | | | | | | | |
Retirement Watch Business Acquisition [Member] | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | Apr. 1, 2016 | | | | | | | | | | Apr. 1, 2016 | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | $ 100,000 | | | | | | | | |
Goodwill | | | | | | | | 8,600 | | | | | | 8,600 | | 8,600 | | | | | | | | |
Business Acquisition Purchase Price Allocation Deferred Revenue | | | | | | | | $ 600,000 | | | | | | $ 600,000 | | $ 600,000 | | | | | | | | |