Segment reporting (restated) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenue from external customers	$ 409	$ 536
Cost of revenue	265	104
Gross margin	144	432
Operating loss	(4,490)	(7,862)
Cash and cash equivalents	3,443	3,704	8,434
Intangible assets	1,795	0
Medicsights [Member] | Software and Devices [Member]
Revenue from external customers	222	536
Cost of revenue	92	104
Gross margin	130	432
Operating loss	(1,755)	(6,682)
Cash and cash equivalents	330	3,123
Intangible assets	0	0
Medicsights [Member] | Service [Member]
Revenue from external customers	187	0
Cost of revenue	173	0
Gross margin	14	0
Operating loss	(11)	0
Cash and cash equivalents	0	0
Intangible assets	0	0
Mgt Gaming [Member]
Revenue from external customers	0	0
Cost of revenue	0	0
Gross margin	0	0
Operating loss	(208)	0
Cash and cash equivalents	49	0
Intangible assets	1,795	0
Unallocated Corporate Other [Member]
Revenue from external customers	0	0
Cost of revenue	0	0
Gross margin	0	0
Operating loss	(2,516)	(1,180)
Cash and cash equivalents	3,064	581
Intangible assets	$ 0	$ 0