Operating Segments - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Operating loss	$ (3,958)	$ (3,962)	$ (4,754)	$ (4,880)	$ (4,485)	$ (4,177)	$ (5,069)	$ (5,239)	$ (17,554)	$ (18,970)	$ (21,644)
Other income (loss), net	(84)	704	(15)	(388)	77	(246)	1,452	30,374	217	31,657	383
Equity loss	(9,537)	(7,635)	(13,765)	(8,662)	(10,006)	(8,962)	(3,175)	6,808	(39,599)	(15,335)	(12,607)
Net loss	(14,271)	$ (11,628)	$ (19,022)	$ (14,603)	(15,114)	$ (14,006)	$ (7,348)	$ 31,319	(59,524)	(5,149)	(35,525)
Assets	257,634				318,454				257,634	318,454
Healthcare [Member]
Segment Reporting Information [Line Items]
Operating loss									0	0	0
Other income (loss), net									558	31,820	(857)
Equity loss									(23,790)	(3,944)	(31,706)
Net loss									(23,232)	27,876	(32,563)
Assets	53,332				62,292				53,332	62,292
Technology [Member]
Segment Reporting Information [Line Items]
Operating loss									0	0	0
Other income (loss), net									0	0	0
Equity loss									(15,691)	(10,831)	20,899
Net loss									(15,691)	(10,831)	20,899
Assets	119,442				88,408				119,442	88,408
Reportable Subsegments [Member]
Segment Reporting Information [Line Items]
Operating loss									0	0	0
Other income (loss), net									558	31,820	(857)
Equity loss									(39,481)	(14,775)	(10,807)
Net loss									(38,923)	17,045	(11,664)
Assets	172,774				150,700				172,774	150,700
Other Segments [Member]
Segment Reporting Information [Line Items]
Operating loss									(17,554)	(18,970)	(21,644)
Other income (loss), net									(341)	(163)	1,240
Equity loss									(118)	(560)	(1,800)
Net loss									(20,601)	(22,194)	$ (23,861)
Assets	$ 84,860				$ 167,754				$ 84,860	$ 167,754