CONTENT ASSETS, NET - Content Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
CONTENT ASSETS [Abstract]
Content amortization - acquired	$ 14,376	$ 17,540
Content amortization - produced	31,921	32,558
Total content amortization	$ 46,297	$ 50,098

The noncash amortization expense, charged against earnings in the period to allocate the cost of content assets over their remaining economic lives

No definition available.

Name:	uone_AmortizationOfContentAssets
Namespace Prefix:	uone_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration