Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Measurement

Schedule of the financial instruments measured at fair value and classified by level according to the fair value measurement hierarchy

(in thousands)	Level 1		Level 2		Level 3		Total
As of December 31, 2016
Assets:
Short-term investments:
Available-for-sale investments	$	15,017	$	36,059	$	—	$	51,076
Term deposits	30		—		—		30
Total Assets	$	15,047	$	36,059	$	—	$	51,106
(in thousands)	Level 1		Level 2		Level 3		Total
As of September 30, 2017
Assets:
Short-term investments:
Available-for-sale investments	$	—	$	501	$	—	$	501
Term deposits	30		—		—		30
Total Assets	$	30	$	501	$	—	$	531