Non-controlling interest (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012		Sep. 30, 2011
Non-controlling interest at January 1, 2012			$ 5,293	[1]
Non-controlling share of losses	(113)	(746)	(525)		(2,652)
Non-controlling share of capital			819		0
Non-controlling share of stock-based expense			32
Non-controlling share of other comprehensive loss			33
Repurchase of Medicsight's stock			(18)
Share consolidation of Medicsights stock			(1,386)
Non-controlling interest at September 30, 2012	3,134		3,134
Mgt Gaming [Member]
Non-controlling interest at January 1, 2012			0
Non-controlling share of losses			(64)
Non-controlling share of capital			819
Non-controlling share of stock-based expense			0
Non-controlling share of other comprehensive loss			0
Repurchase of Medicsight's stock			0
Share consolidation of Medicsights stock			0
Non-controlling interest at September 30, 2012	755		755
Medicsights [Member]
Non-controlling interest at January 1, 2012			5,293
Non-controlling share of losses			(461)
Non-controlling share of capital			0
Non-controlling share of stock-based expense			15
Non-controlling share of other comprehensive loss			33
Repurchase of Medicsight's stock			(1,115)
Share consolidation of Medicsights stock			(1,386)
Non-controlling interest at September 30, 2012	$ 2,379		$ 2,379

[1] Derived from audited financial information