Document and Entity Information - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Mar. 18, 2016	Jun. 30, 2015
Document And Entity Information
Entity Registrant Name	URANIUM RESOURCES INC /DE/
Entity Central Index Key	0000839470
Document Type	10-K
Document Period End Date	Dec. 31, 2015
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity a Well-known Seasoned Issuer	No
Entity a Voluntary Filer	No
Entity's Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 21,000
Entity Common Stock, Shares Outstanding		5,159,519
Trading Symbol	URRE
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2015