Short-Term Investments (Tables)

9 Months Ended

Sep. 30, 2019

Short-Term Investments

Summary of short-term investments

The following table summarizes the short-term investments held at September 30, 2019 and December 31, 2018 (in thousands):

			Gross Unrealized		Gross Unrealized
	Amortized Cost		Gains		Losses		Fair Value
September 30, 2019
Corporate debt securities	$	1,850	$	—	$	—	$	1,850
Reverse repurchase agreements		21,000		—		—		21,000
Total	$	22,850	$	—	$	—	$	22,850

			Gross Unrealized		Gross Unrealized
	Amortized Cost		Gains		Losses		Fair Value
December 31, 2018
Corporate debt securities	$	7,280	$	—	$	(4)	$	7,276
Reverse repurchase agreements		15,000		—		—		15,000
Total	$	22,280	$	—	$	(4)	$	22,276