Non-controlling interest (restated) (Tables)

12 Months Ended

Dec. 31, 2012

Noncontrolling Interest [Abstract]

Schedule of Stockholders Equity [Table Text Block]

The Company has the following non-controlling interest:

	MGT Gaming (Restated)			Medicsight			Total (Restated)
Non-controlling interest at January 1, 2012	$	–		$	5,293		$	5,293
Non-controlling share of losses		(94	)		(1,027	)		(1,121	)
Non-controlling share of capital		862			–			862
Non-controlling share of stock-based expense		–			15			15
Non-controlling share of other comprehensive loss		–			26			26
Acquisition of Medicsight's Ltd. stock		–			(4,307	)		(4,307	)
Non-controlling interest at December 31, 2012	$	768		$	–		$	768

Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block]

The following schedule presents the effects of changes in MGT’s ownership interest in Medicsight Ltd on the equity attributable to MGT:

	Year ended December 31,
	2012			2011
Net loss attributable to MGT Capital Investments, Inc.	$	(3,604	)	$	(4,549	)
Transfers (to) from the non-controlling interest:
Increase in MGT's paid in capital from sale and assignment of Medicsight stock		–			21
Increase in MGT's paid-in capital from acquisition of Medicsight Ltd stock		8,018			–
Changes from the net loss attributable to MGT and transfers to the non-controlling interest	$	4,414		$	(4,528	)