Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 10,720		$ 10,720		$ 9,094
Accumulated depreciation - other	(5,876)		(5,876)		(4,836)
Net property and equipment	4,844		4,844		4,258
Depreciation	540	$ 605	1,000	$ 1,100
Computer equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	2,834		2,834		2,270
Technical equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	3,080		3,080		2,427
Facilities
Property, Plant and Equipment [Line Items]
Total property and equipment	3,506		3,506		3,387
Instruments
Property, Plant and Equipment [Line Items]
Total property and equipment	885		885		0
Capital projects in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 415		$ 415		$ 1,010