Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Schedule of Financial Assets and Liabilities Measured at Fair Value

The following tables present information about the Company’s financial assets and liabilities that have been measured at fair value as of June 30, 2018 and December 31, 2017, and indicates the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):

	June 30, 2018
	Level 1		Level 2		Total

Money market funds	$	10,181	$	—	$	10,181
Corporate notes and obligations		—		32,557		32,557
U.S. government treasury securities		47,326		—		47,326
	$	57,507	$	32,557	$	90,064

	December 31, 2017
	Level 1		Level 2		Total

Money market funds	$	24,225	$	—	$	24,225
Corporate notes and obligations		—		38,020		38,020
U.S. government treasury securities		55,881		—		55,881
	$	80,106	$	38,020	$	118,126

- Definition

Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.

+ References + Details