Property, plant and equipment, net (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017		Sep. 30, 2016	Dec. 31, 2016
Property, plant and equipment net [Abstract]
Accumulated depreciation and amortization	$ (2,869)	[1]		$ (2,980)
Property, plant and equipment, net	5,423	[1]		5,529
Depreciation and amortization expense	670		$ 996
Equipment, Furniture and Fixtures [Member]
Property, plant and equipment net [Abstract]
Property, plant and equipment	4,085	[1]		4,718
Leasehold Improvements [Member]
Property, plant and equipment net [Abstract]
Property, plant and equipment	4,207	[1]		$ 3,791
Depreciation and amortization expense	$ 670		$ 996

[1] Reflects the effect of the OncoCyte Deconsolidation.