Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Summary of Financial Assets Measured at Fair Value on a Recurring Basis

Financial assets measured at fair value on a recurring basis are categorized in the tables below based upon the lowest level of significant input to the valuations (in thousands):

	March 31, 2017
	Level 1		Level 2		Level 3		Total
Money market funds	$	5,387	$	—	$	—	$	5,387
U.S. government treasury bills		—		601		—		601
Corporate bonds and commercial paper		—		1,702		—		1,702
Total	$	5,387	$	2,303	$	—	$	7,690