ACQUISITIONS AND RECENT TRANSACTIONS (Details Textual) - USD ($) | Aug. 09, 2017 | Jul. 06, 2017 | Jun. 08, 2017 | Aug. 01, 2016 | Jun. 10, 2016 | Apr. 05, 2016 | Mar. 08, 2016 | Dec. 29, 2017 | Nov. 22, 2017 | Sep. 29, 2017 | Sep. 15, 2017 | Aug. 31, 2017 | Jun. 30, 2017 | May 30, 2017 | May 19, 2017 | Mar. 30, 2017 | Feb. 28, 2017 | Feb. 24, 2017 | Jan. 30, 2017 | Jan. 03, 2017 | Dec. 30, 2016 | Nov. 30, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Mar. 17, 2016 | Dec. 31, 2017 | Dec. 28, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 02, 2017 | Mar. 15, 2017 | Sep. 13, 2016 | May 17, 2016 |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Payments for Loans | | | | | | | | | | | | | | | | | | | $ 2,000,000 | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 255,000,000 | | | | | | | |
Gains (Losses) on Extinguishment of Debt, Total | | | | | | | | | | | | | | | $ 600,000 | | | | 4,500,000 | | | | | | | | (2,775,000) | | $ (87,000) | $ (41,000) | | | | |
Amortization of Financing Costs | | | | | | | | | | | | | | | | | $ 18,000,000 | | 12,000,000 | | | | | | | | 940,000 | | $ 631,000 | 628,000 | | | | |
Dividends Payable, Date Declared | | | | | | Mar. 10, 2016 | | Dec. 7, 2017 | | Sep. 12, 2017 | | | | | | | | | | | | | | Jun. 2, 2016 | | | | | | | | | | |
Common Stock, Dividends, Per Share, Declared | | | | | | $ 0.0650 | | $ 0.0650 | | $ 0.0650 | | | $ 0.0650 | | | $ 0.0650 | | | | | | | $ 0.0650 | $ 0.0650 | | | | | $ 0.0650 | | | | | |
Payments of Ordinary Dividends, Common Stock | | | | | | $ 1,700,000 | | $ 1,700,000 | | $ 1,700,000 | | | $ 1,700,000 | | | $ 1,700,000 | | | | | | | $ 1,700,000 | $ 1,600,000 | | | 6,790,000 | | $ 6,678,000 | 6,612,000 | | | | |
Dividends Payable, Date to be Paid | | | | | | Apr. 5, 2016 | | Dec. 29, 2017 | | Sep. 29, 2017 | | | | | | | | | | | | | Sep. 30, 2016 | Jun. 30, 2016 | | | | | Dec. 31, 2016 | | | | | |
Dividends Payable, Date of Record | | | | | | Mar. 22, 2016 | | Dec. 18, 2017 | | Sep. 22, 2017 | | | | | | | | | | | | | Sep. 19, 2016 | Jun. 16, 2016 | | | | | Dec. 19, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | 4,043,000 | | $ 10,120,000 | | | | | |
Goodwill | | | | | | | | | | | | | | | | | | | | | | | | | | | 26,424,000 | | 25,613,000 | 24,563,000 | | | | |
Business Combination, Liabilities Arising from Contingencies, Amount Recognized | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 1,200,000 | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents | | | | | | | $ 1,300,000 | | | | | | | | | | | | | | | | | | | | | | 1,100,000 | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | | | | | | | 600,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Payments to Acquire Intangible Assets | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 3,000 | | | | | |
Proceeds from Sale of Land Held-for-use | | | | | | | | | | | | | | | | | | | | | | | $ 700,000 | | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | | | | | | | | | | | | | 4.58% | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | | | | | | | | | | | | | | | | | | | | | | | | | | | 211,658 | | 0 | | | | | |
Business Combination Recognized Identifiable Assets Increase or Decrease | | | | | | | | | | | | $ 1,000,000 | | | | | | | | | | | | | | | $ 100,000 | | $ 500,000 | | | | | |
Proceeds from Collection of Lease Receivables | | | | | | | | | | | | | $ 600,000 | | | | | | | | | | | | | | | | | | | | | |
Proceeds from Sale of Intangible Assets | | | | | | | | | | | | | | $ 10,000 | | | | | | | | | | | | | | | | | | | | |
Gain (Loss) on Disposition of Intangible Assets | | | | | | | | | | | | | | $ 56,000 | | | | | | | | | | | | | | | | | | | | |
Swingline Loans [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | | | | | | | | | | | | | | | 7,500,000 | | | | | | | | | | | | | | | | | | | |
WQVN-AM [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Agreement to Sell Assets in Cash | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 3,500,000 | | | |
Gain (Loss) on Disposition of Assets for Financial Service Operations | | | | | | | | | | | | | | | | | | | | | | | | | | | 4,700,000 | | | | | | | |
WQVN AM Tower Site [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Proceeds from Sale of Property, Plant, and Equipment | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 1,900,000 | | | | | | |
Gain (Loss) on Disposition of Assets | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 400,000 | | | | | | |
Restricted Stock [Member] | Executive Officer [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 33,066 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Restricted Stock [Member] | Management [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | | | | | | | | | | | | | | | | | | 178,592 | | | | | | | | | | | | | | | | |
Standby Letters of Credit [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | | | | | | | | | | | | | | | 5,000,000 | | | | | | | | | | | | | | | | | | | |
Senior Secured Debt [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | | | | | | | | $ 255,000,000 | | | | | | | | | | | | $ 255,000,000 | | | | | | | |
Debt Instrument Expiration Period | | | | | | | | | | | | | | | 2,024 | | | | | | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | 6.75% | | | | | | | | | | | | 7.08% | | | | | | | |
Assetbased Revoloving Credit Facility [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | | | | | | | | $ 30,000,000 | | | | | | | | | | | | | | | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | | | | | | | | | | | | | | | 4,500,000 | | | | | | | | | | | | $ 9,000,000 | | | | | | | |
Word Broadcasting Network [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Proceeds from Sale of Other Assets | | | | | | | | | | | | | | | | | | | | $ 500,000 | | | | | | | | | | | | | | |
Nationa lPark 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 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
King James Bible Mobile Applications [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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 | | | | | | | | | | | | | | | 258,000,000 | | 3,000,000 | | | | $ 5,000,000 | $ 1,000,000 | 2,300,000 | $ 1,200,000 | $ 800,000 | $ 800,000 | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | | | | | | | | | | 300,000,000 | | | | | | | | | | | | | | | | | |
Gains (Losses) on Extinguishment of Debt, Total | | | | | | | | | | | | | | | 1,500,000 | | $ 6,200,000 | | $ 4,500 | | 12,000 | 2,500 | 3,900 | 1,300 | | 2,500 | | | | | | | | |
Amortization of Financing Costs | | | | | | | | | | | | | | | | | | | | | $ 33,000,000 | $ 6,900,000 | 14,000,000 | 3,400,000 | | $ 6,700,000 | | | | | | | | |
Early Repayments Of Debt Principal Payments | | | | | | | | | | | | | | | | | | | | | | | $ 1,500,000 | $ 400,000 | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 4.78% | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | | | | | | | | | | | | | | | | | | | | | | | | | | | 300,000,000 | | | | | | | |
Revolver [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Payments for Loans | | | | | | | | | | | | | | | 4,100,000 | | | | | | | | | | | | | | | | | | | |
Gains (Losses) on Extinguishment of Debt, Total | | | | | | | | | | | | | | | 56,000,000,000 | | | | | | | | | | | | | | | | | | | |
Amortization of Financing Costs | | | | | | | | | | | | | | | | | | | | | | | | | | | 26,000 | | $ 70,000 | $ 68,000 | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | | | | | | | | | | | | | | | | | | | | | | | | | | | 25,000,000 | | | | | | | |
Long-term Line of Credit, Noncurrent | | | | | | | | | | | | | | | $ 25,000,000 | | | | | | | | | | | | | | | | | | | |
Time Brokerage Agreement [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
License Fee Payable | | | | | | | | | | | | | | | | | | | | | | | | | | | 100,000 | | | | | | | |
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 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 3,000 | | | | | |
FM Translator in Columbus, Ohio [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Jun. 20, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 300,000 | | | | | |
FM Translator Aurora Florida Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dec. 31, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 50,000 | | | | | |
FM Translator Port St. Lucie Florida Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dec. 31, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 50,000 | | | | | |
FM Translator Rhinelander Wisconsin Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dec. 14, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 50,000 | | | | | |
FM Translator Little Fish Lake Valley California Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dec. 8, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 44,000 | | | | | |
FM Translator Lake Placid Florida Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dec. 1, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 35,000 | | | | | |
FM Translator construction permit Lahaina Hawaii and Kihei Hawaii Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 110,000 | | | | | |
FM Translator Crested Butte Colorado Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nov. 22, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 39,000 | | | | | |
FM Translator Dansville New York Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nov. 21, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 75,000 | | | | | |
FM Translator construction permit Kingsville Texas Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nov. 11, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 50,000 | | | | | |
FM Translator Sebring Florida Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nov. 7, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 77,000 | | | | | |
FM Translator Carbondale Pennsylvania Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nov. 21, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 75,000 | | | | | |
Radio Station KXFN-AM St. Louis Missouri [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Oct. 20, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 190,000 | | | | | |
FM Translator construction permit Angola Indiana Cofax Indiana and Battle Creek Michigan Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Oct. 20, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 155,000 | | | | | |
FM Translator construction permit Palm Coast Florida Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Oct. 19, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 65,000 | | | | | |
FM Translator Lake City Florida Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Oct. 12, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 65,000 | | | | | |
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 | | | | | |
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 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 50,000 | | | | | |
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 | | | | | |
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 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 88,000 | | | | | |
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 | | | | | |
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 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 25,000 | | | | | |
Christian Concert Alerts.com [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dec. 1, 2016 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 150,000 | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | 200 | | | | | | | |
Payments to Acquire Businesses, Gross | | | | | | | | | | | | | | | | | | | | | | | | | | | 100 | | | | | | | |
Business Acquisition Installments Payable | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 50,000 | | | | | | | |
History On The Net.com [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 100,000 | | | | | |
Cycleprophetcom Business Acquisition [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 400,000 | | | | | |
Goodwill | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 7,200 | |
Business Acquisition Purchase Price Allocation Deferred Revenue | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 100,000 | |
Business Acquisition Contingent Earn Out Consideration Payable | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 100,000 | |
Estimated Contingent Earn-out Consideration | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 66,000 | | | | | |
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 | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 100,000 | | | | | |
Goodwill | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 8,600 | | | | | |
Business Acquisition Purchase Price Allocation Deferred Revenue | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 600,000 | | | | | |
Hillcrest Media Group Inc [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | $ 3,500,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Goodwill | | | | 800,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Payments to Acquire Businesses, Gross | | | | 3,300,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue | | | | 1,000,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | | | $ 200,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
FM translator construction permit in Eaglemount, Washington Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | Jul. 24, 2017 | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 40,000 | | | | | | | |
FM translator construction permit in Festus, Missouri Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | Jun. 28, 2017 | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 40,000 | | | | | | | |
FM translator construction permit in Quartz Site, Arizona Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | Mar. 14, 2017 | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 20,000 | | | | | | | |
FM translator construction permit in Roseburg, Oregon Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | Mar. 1, 2017 | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 45,000 | | | | | | | |
FM translator in Astoria, Oregon Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | Jan. 16, 2017 | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 33,000 | | | | | | | |
FM translator construction permit in Mohave Valley, Arizona Asset Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Acquisition, Effective Date of Acquisition | | | | | | | | | | | | | | | | | | | | | | | | | | | Jan. 6, 2017 | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 20,000 | | | | | | | |
Radio Station WSPZ-AM [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | $ 600,000 | | $ 1,500,000 | | | | | | | | | | | | | | | | | | | | | | | |
Goodwill | | | | | | | | | | | $ 13,000 | | | | | | | | | | | | | | | | | | | | | | | |
TeacherTube.com Website [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | 1,100,000 | | | | | | | | | | | | | | | | | | | | | | |
Intelligence Report Newsletter [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | | | | | | | | | | 2,500,000 | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Current | | | | | | | | | | | | $ 2,900,000 | | | | | | | | | | | | | | | | | | | | | | |
TradersCrux.com Website [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | $ 300,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Estimated Contingent Earn-out Consideration | | $ 100,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Portuguese Bible mobile application Assets Purchase [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Total | | | $ 65,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Estimated Contingent Earn-out Consideration | | | $ 20,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Prayers-For-Special-Help.com [Member] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities, Total | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ 200,000 | | |