v3.10.0.1
Document And Entity Information - shares
6 Months Ended
Jun. 30, 2018
Jul. 27, 2018
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Entity Registrant Name URBAN ONE, INC.  
Entity Central Index Key 0001041657  
Current Fiscal Year End Date --12-31  
Entity Filer Category Smaller Reporting Accelerated Filer  
Trading Symbol UONE  
Common Class A [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   1,641,400
Common Class B [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   2,861,843
Common Class C [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   2,928,906
Common Class D [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   40,161,298