Organization and basis of presentation (Details 2) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 28, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Gain (Loss) on Disposition of Assets, Total		$ (144)	$ 0	$ (144)	$ 0
MGT Interactive [Member]
Gain (Loss) on Disposition of Assets, Total	$ 144
MGT Interactive [Member] | Cash [Member]
Gain (Loss) on Disposition of Assets, Total	35
MGT Interactive [Member] | Membership Interest [Member]
Gain (Loss) on Disposition of Assets, Total	(96)
MGT Interactive [Member] | Intangible Assets [Member]
Gain (Loss) on Disposition of Assets, Total	(179)
MGT Interactive [Member] | Additional Paid-in Capital [Member]
Gain (Loss) on Disposition of Assets, Total	$ 96