Non-controlling interest (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Noncontrolling Interest [Line Items]
Non-controlling interest at January 1, 2014			$ 2,107
Acquisition of non-controlling interest in FanTD			(266)
Non-controlling share of net loss	(133)	(91)	(303)	(147)
Non-controlling interest at June 30, 2014	1,538		1,538
Mgt Gaming [Member]
Noncontrolling Interest [Line Items]
Non-controlling interest at January 1, 2014			585
Acquisition of non-controlling interest in FanTD
Non-controlling share of net loss			(116)
Non-controlling interest at June 30, 2014	469		469
FanTD LLC [Member]
Noncontrolling Interest [Line Items]
Non-controlling interest at January 1, 2014			1,431
Acquisition of non-controlling interest in FanTD			(266)
Non-controlling share of net loss			(167)
Non-controlling interest at June 30, 2014	998		998
MGT Interactive [Member]
Noncontrolling Interest [Line Items]
Non-controlling interest at January 1, 2014			96
Acquisition of non-controlling interest in FanTD
Non-controlling share of net loss			(5)
Non-controlling interest at June 30, 2014	91		91
M2P Americas [Member]
Noncontrolling Interest [Line Items]
Non-controlling interest at January 1, 2014			(5)
Acquisition of non-controlling interest in FanTD
Non-controlling share of net loss			(15)
Non-controlling interest at June 30, 2014	$ (20)		$ (20)