Segment reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Revenue from external customers	$ 86	$ 213
Cost of revenue	63	36
Gross profit	23	177
Operating profit/(loss)	(1,138)	(677)
Cash and cash equivalents (excluding $2,039 restricted cash)	2,678	3,342	3,443	3,704
Intangible assets (restated)	1,743		1,795
Medicsights [Member] | Software and Devices [Member]
Revenue from external customers	11	193
Cost of revenue	0	36
Gross profit	11	157
Operating profit/(loss)	(4)	(484)
Cash and cash equivalents (excluding $2,039 restricted cash)	276		330
Intangible assets (restated)	0		0
Medicsights [Member] | Service [Member]
Revenue from external customers	75	20
Cost of revenue	63	0
Gross profit	12	20
Operating profit/(loss)	5	13
Cash and cash equivalents (excluding $2,039 restricted cash)	0		0
Intangible assets (restated)	0		0
Mgt Gaming [Member]
Revenue from external customers	0	0
Cost of revenue	0	0
Gross profit	0	0
Operating profit/(loss)	(121)	0
Cash and cash equivalents (excluding $2,039 restricted cash)	4		49
Intangible assets (restated)	1,743		1,795
Unallocated Corporate Other [Member]
Revenue from external customers	0	0
Cost of revenue		0
Gross profit		0
Operating profit/(loss)	(1,018)	(206)
Cash and cash equivalents (excluding $2,039 restricted cash)	2,398		3,064
Intangible assets (restated)	$ 0		$ 0