Segment reporting (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenue from external customers	$ 1,056us-gaap_Revenues	$ 396us-gaap_Revenues
Cost of revenue	(610)us-gaap_CostOfRevenue	(559)us-gaap_CostOfRevenue
Gross margin	446us-gaap_GrossProfit	(163)us-gaap_GrossProfit
Operating profit/(loss )	(5,629)us-gaap_OperatingIncomeLoss	(9,512)us-gaap_OperatingIncomeLoss
Cash and cash equivalents	1,455	4,642	3,443
Property and equipment	43us-gaap_PropertyPlantAndEquipmentNet	45us-gaap_PropertyPlantAndEquipmentNet
Intangible assets	2,417	2,423
Goodwill	6,444us-gaap_Goodwill	6,444us-gaap_Goodwill	0us-gaap_Goodwill
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Property and equipment	41	51
Intangible assets	790	1,002
Goodwill	0us-gaap_GoodwillAcquiredDuringPeriod	4,948us-gaap_GoodwillAcquiredDuringPeriod
Intellectual Property [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	0	0
Cost of revenue	0	0
Gross margin	0	0
Operating profit/(loss )	(487)	(1,195)
Cash and cash equivalents	11	6
Property and equipment	0	0
Intangible assets	1,386	2,007
Goodwill	0	0
Additions:
Property and equipment	0	0
Intangible assets	0	0
Goodwill	0	0
Medicsights Ltd [Member] \| Software and Devices [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	85	78
Cost of revenue	0	0
Gross margin	85	78
Operating profit/(loss )	85	63
Cash and cash equivalents	0	0
Property and equipment	0	0
Intangible assets	0	0
Goodwill	0	0
Additions:
Property and equipment	0	0
Intangible assets	0	0
Goodwill	0	0
Medicsights Ltd [Member] \| Services [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	0	97
Cost of revenue	0	(63)
Gross margin	0	34
Operating profit/(loss )	0	27
Cash and cash equivalents	0	0
Property and equipment	0	0
Intangible assets	0	0
Goodwill	0	0
Additions:
Property and equipment	0	0
Intangible assets	0	0
Goodwill	0	0
Mgt Gaming [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	971	221
Cost of revenue	(610)	(496)
Gross margin	361	(275)
Operating profit/(loss )	(2,988)	(1,440)
Cash and cash equivalents	820	338
Property and equipment	38	28
Intangible assets	1,030	416
Goodwill	6,444	6,444
Additions:
Property and equipment	41	42
Intangible assets	790	1,002
Goodwill	0	6,444
Unallocated Corporate Other [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	0	0
Cost of revenue	0	0
Gross margin	0	0
Operating profit/(loss )	(2,239)	(6,967)
Cash and cash equivalents	624	4,298
Property and equipment	5	17
Intangible assets	1	0
Goodwill	0	0
Additions:
Property and equipment	0	9
Intangible assets	0	0
Goodwill	$ 0	$ 0

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