Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2018

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
December 31, 2017
Assets:
Short-term investments:
Available-for-sale securities	$	—	$	50	$	—	$	50
Term deposits	60		—		—		60
Total Assets	$	60	$	50	$	—	$	110

(in thousands)	Level 1		Level 2		Level 3		Total
June 30, 2018
Assets:
Short-term investments:
Available-for-sale securities	$	—	$	50	$	—	$	50
Term deposits	175		—		—		175
Total Assets	$	175	$	50	$	—	$	225