Segment reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Revenue from external customers	$ 67	$ 56	$ 153	$ 269
Cost of revenue	(20)	(63)	(83)	(99)
Gross margin	47	(7)	70	170
Operating profit/(loss)	(3,097)	(1,130)	(4,235)	(1,807)
Cash and cash equivalents	6,348	5,646	6,348	5,646	3,443	3,704
Intangible assets	2,303		2,303		1,795
Intellectual Property [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	0	0	0	0
Cost of revenue	0	0	0	0
Gross margin	0	0	0	0
Operating profit/(loss)	(205)	(69)	(326)	(69)
Cash and cash equivalents	50		50		49
Intangible assets	1,692		1,692		1,795
Medicsights [Member] | Software and Devices [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	27	13	38	206
Cost of revenue	0	0	0	(36)
Gross margin	27	13	38	170
Operating profit/(loss)	27	(409)	23	(893)
Cash and cash equivalents	272		272		330
Intangible assets	0		0		0
Medicsights [Member] | Service [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	22	43	97	63
Cost of revenue	0	(63)	(63)	(63)
Gross margin	22	(20)	34	0
Operating profit/(loss)	22	(90)	27	(77)
Cash and cash equivalents	0		0		0
Intangible assets	0		0		0
Mgt Gaming [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	18	0	18	0
Cost of revenue	(20)	0	(20)	0
Gross margin	(2)	0	(2)	0
Operating profit/(loss)	(141)	0	(141)	0
Cash and cash equivalents	143		143		0
Intangible assets	317		317		0
Unallocated Corporate Other [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	0	0	0	0
Cost of revenue	0	0	0	0
Gross margin	0	0	0	0
Operating profit/(loss)	(2,800)	(562)	(3,818)	(768)
Cash and cash equivalents	5,883		5,883		3,064
Intangible assets	$ 294		$ 294		$ 0