DOCUMENT AND ENTITY INFORMATION	6 Months Ended
	Jun. 30, 2011	Aug. 15, 2011
Entity Registrant Name	MGT CAPITAL INVESTMENTS INC
Entity Central Index Key	0001001601
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Trading Symbol	mgt
Entity Common Stock, Shares Outstanding		39,550,590
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2011
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2011