v3.25.1
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2024
Apr. 18, 2025
Jun. 30, 2024
Document Information [Line Items]      
Document Type 10-K/A    
Amendment Flag false    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Document Transition Report false    
Entity File Number 001-39029    
Entity Registrant Name MEDIACO HOLDING INC.    
Entity Central Index Key 0001784254    
Entity Incorporation, State or Country Code IN    
Entity Tax Identification Number 84-2427771    
Entity Address, Address Line One 48 W 25th Street, 3rd Floor    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10011    
City Area Code 212    
Local Phone Number 447-1000    
Title of 12(b) Security Class A common stock, $0.01 par value    
Trading Symbol MDIA    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 13,485,737
Auditor Name Ernst & Young LLP    
Auditor Location Indianapolis, IN    
Auditor Firm ID 42    
Class A Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   41,238,824  
Class B Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   5,413,197  
Class C Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   0