Discontinued Operations - Key Financial Results and Assets and Liabilities Held for Sale (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Income (loss) from discontinued operations, net of tax	$ 0	$ 96	$ 0	$ (1,390)
Hemostasis Business | Discontinued operations, disposed of by sale
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net product revenues		28		78
Cost of product revenue		(9)		1,695
Research and development		(15)		104
Selling, general and administrative		(44)		634
Total operating expenses		(68)		2,433
Income (loss) from operations		96		(2,355)
Gain from sale of business		0		1,004
Other expense, net		0		(39)
Income (loss) from discontinued operations before income taxes		96		(1,390)
Benefit for income taxes		0		0
Income (loss) from discontinued operations, net of tax		$ 96		$ (1,390)