Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Other Intangible Assets [Abstract]

Schedule of Goodwill

The changes in the carrying amounts of goodwill for the years ended December 31, 2016 and 2015 were as follows (in thousands):

	Year Ended
	December 31,
	2016		2015
Beginning balance	$	53,065	$	54,612
Currency translation		(1,392)		(1,547)
Ending balance	$	51,673	$	53,065

Schedule of Identifiable Intangible Assets

Purchased intangible assets consisted of the following as of December 31, 2016 and 2015 (in thousands):

	December 31, 2016						December 31, 2015
	Gross						Gross
	Carrying		Accumulated		Intangible		Carrying		Accumulated		Intangible
	Amount		Amortization		Assets, Net		Amount		Amortization		Assets, Net
Finite-lived intangible assets:
Proprietary adjuvant technology	$	8,222	$	(1,404)	$	6,818	$	8,858	$	(1,070)	$	7,788
Collaboration agreements		3,713		(1,306)		2,407		3,999		(994)		3,005
Total identifiable intangible assets	$	11,935	$	(2,710)	$	9,225	$	12,857	$	(2,064)	$	10,793

Schedule of Estimated Amortization Expense

Estimated amortization expense for existing intangible assets for each of the five succeeding years ending December 31, is as follows (in thousands):

Year	Amount
2017	$	793
2018		793
2019		793
2020		677
2021		472