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Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2021
Mar. 16, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Trading Symbol MDIA    
Entity Registrant Name MEDIACO HOLDING INC.    
Entity Central Index Key 0001784254    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Public Float     $ 10,182,038
Entity Small Business true    
Entity Shell Company false    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Document Annual Report true    
Entity Interactive Data Current Yes    
Document Transition Report false    
Entity Address, Address Line One 395 HUDSON STREET    
Entity Address, Address Line Two FLOOR 7    
Entity Address, City or Town NEW YORK    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10014    
City Area Code 212    
Local Phone Number 229-9797    
Title of 12(b) Security Class A common stock, $0.01 par value    
Security Exchange Name NASDAQ    
Entity File Number 001-39029    
Entity Incorporation, State or Country Code IN    
Entity Tax Identification Number 84-2427771    
ICFR Auditor Attestation Flag false    
Auditor Name Ernst & Young LLP    
Auditor Location Indianapolis, IN    
Auditor Firm ID 42    
Documents Incorporated by Reference

Documents

Form 10-K Reference

Proxy Statement for 2022 Annual Meeting of Shareholders expected to be filed by May 2, 2022 (the first business day following the day that is 120 days after the last day of the registrant’s 2021 fiscal year)

Part III

 

    
Class A Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   2,914,606  
Class B Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   5,413,197