Fair Value Measurement (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables sets forth the fair value of the Company’s financial assets and liabilities at fair value on a recurring basis based on the three-tier fair value hierarchy (in thousands):

	December 31, 2016
	Level 1		Level 2		Level 3		Total
Financial Assets
Money market funds	$	4,584	$	—	$	—	$	4,584
Reverse repurchase agreements		—		39,250		—		39,250
US government and agency securities		—		15,754		—		15,754
Total financial assets	$	4,584	$	55,004	$	—	$	59,588

	December 31, 2015
	Level 1		Level 2		Level 3		Total
Financial Assets
Money market funds	$	3,988	$	—	$	—	$	3,988
Reverse repurchase agreements		—		16,250		—		16,250
US government and agency securities		—		3,768		—		3,768
Total financial assets	$	3,988	$	20,018	$	—	$	24,006