Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Measurements

Schedule of fair value of financial assets

The following table presents the fair value of the Company’s financial assets determined using the inputs defined above (in thousands).

	December 31, 2017
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	48,704	$	—	$	—	$	48,704
Corporate bonds		—		6,247		—		6,247
Commercial paper		—		58,524		—		58,524
Governmental bonds		—		40,303		—		40,303
Total financial assets	$	48,704	$	105,074	$	—	$	153,778

	December 31, 2016
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	11,270	$	—	$	—	$	11,270
Corporate bonds		—		21,841		—		21,841
Commercial paper		—		10,769		—		10,769
Governmental bonds		—		41,289		—		41,289
Total financial assets	$	11,270	$	73,899	$	—	$	85,169