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Related Party Transactions (Details Textual) |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |  |
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Dec. 06, 2019 USD ($) | Dec. 14, 2018 USD ($) | Dec. 05, 2017 USD ($) | Jun. 01, 2013 USD ($) | Jan. 31, 2019 USD ($) | Jan. 31, 2012 USD ($) | Jun. 30, 2011 | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Jan. 09, 2019 USD ($) | Oct. 29, 2018 USD ($) | May 09, 2017 USD ($) | Mar. 31, 2003 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  |  | $ 553,000 |  |  |  |  |  |  |  |  |
CEO Employment Agreement |  |  |  |  |  |  |  | In June 2011, we entered into a new employment agreement with Edward K. Christian, Chairman, President and CEO, which became effective as of June 1, 2011, and replaces and supersedes his prior employment agreement. We entered into amendments to the agreement on February 12, 2016 (the "First Amendment") and February 26, 2019 (the "Second Amendment"). The First Amendment extended the term of the employment agreement to March 31, 2021. The First Amendment also states that on each anniversary of the effective date of the employment agreement, the Compensation committee shall determine in its discretion the amount of any annual increases (which shall not be less than the greater of 4 % or a defined cost of living increase). Mr. Christian may defer any or all of his annual salary. |  |  |  |  |  |
Deferred Compensation Details |  |  |  |  |  |  |  | On December 5, 2017, Mr. Christian agreed to defer approximately $100,000 of his 2018 salary which was paid 100% on January 4, 2019. On December 14, 2018, Mr. Christian agreed to defer approximately $100,000 of his 2019 salary to be paid 100% on January 3, 2020. |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Consideration |  |  |  |  |  |  |  |  |  |  | $ 210,000 | $ 9,300,000 | $ 23,000,000 |
Operating Leases, Rent Expense, Minimum Rentals |  |  |  |  |  |  |  | $ 4,400 | $ 4,100 | $ 3,300 |  |  |  |
Surtsey Productions Inc [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Rents Received |  |  |  |  |  |  |  |  |  | 3,000 |  |  |  |
Surtsey Media, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tba Fees Kvct |  |  |  |  |  |  |  |  |  | 3,800 |  |  |  |
Extension Fee Paid |  |  |  | $ 37,050 |  | $ 27,950 |  |  |  |  |  |  |  |
Debt Guaranteed Related Party |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,250,000
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |
Principal Stockholder Employment Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compensation, Annual Increase, Maximum Threshold Percentage |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |
Deferred Salary, Amount | $ 100,000 | $ 100,000 | $ 100,000 |  |  |  |  |  |  |  |  |  |  |
Deferred Salary, Payment Percentage | 100.00% | 100.00% | 100.00% |  |  |  |  |  |  |  |  |  |  |
Change In Control, Amount Payable, Multiple |  |  |  |  |  |  |  | 2.99 |  |  |  |  |  |
Health Insurance Provided, Period |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |
Non-compete Agreement Period |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |
Severance Payment Percentage |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |
Severance Payment Period |  |  |  |  |  |  |  | 24 months |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |
Average Annual Compensation |  |  |  |  |  |  |  | $ 1,889,000 |  |  |  |  |  |
Change In Control Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Change In Control, Amount Payable, Multiple |  |  |  |  |  |  |  | 1.5 |  |  |  |  |  |
Lumpsum Payment Period |  |  |  |  |  |  |  | 45 days |  |  |  |  |  |
Employee Continuation Period |  |  |  |  |  |  |  | 6 months |  |  |  |  |  |
Employee Termination Period |  |  |  |  |  |  |  | 6 months |  |  |  |  |  |
Time Brokerage Agreement [Member] | Surtsey Media, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement Extension Period |  |  |  |  |  | 9 years |  |  |  |  |  |  |  |
Number Of Additional Extension Periods |  |  |  |  |  | 2 |  |  |  |  |  |  |  |
Agreement Additional Extension Period |  |  |  |  |  | 8 years |  |  |  |  |  |  |  |
Station Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Station Agreement Fees Kfjx |  |  |  |  |  |  |  |  |  | $ 5,200 |  |  |  |
Option Agreement For Kfjx |  |  |  |  |  | $ 1,200,000 |  |  |  |  |  |  |  |
Apex Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  |  |  | $ 23,000,000 |  |  |  |  |  |

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