Investments (Tables)

6 Months Ended

Jun. 30, 2017

Investments

Schedule of cash, cash equivalents and investments

Cash, cash equivalents and investments consist of the following (in thousands):

	June 30, 2017
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
Cash and cash equivalents:
Cash and money market accounts	$	27,583	$	—	$	—	$	27,583
Total cash and cash equivalents	$	27,583	$	—	$	—	$	27,583
Investments:
Corporate bonds and commercial paper (due within 1 year)	$	30,340	$	6	$	(11)	$	30,335
Total investments	$	30,340	$	6	$	(11)	$	30,335
Total cash, cash equivalents, and investments	$	57,923	$	6	$	(11)	$	57,918

	December 31, 2016
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
Cash and cash equivalents:
Cash and money market accounts	$	22,349	$	—	$	—	$	22,349
Overnight repurchase agreements		10,000		—		—		10,000
Total cash and cash equivalents	$	32,349	$	—	$	—	$	32,349
Investments:
Corporate bonds and commercial paper (due within 1 year)	$	48,519	$	53	$	(24)	$	48,548
Total investments	$	48,519	$	53	$	(24)	$	48,548
Total cash, cash equivalents, and investments	$	80,868	$	53	$	(24)	$	80,897