Investments (Tables)

12 Months Ended

Dec. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Amortized Cost and Gross Unrealized Gains and Losses on All Securities

The following table presents the amortized cost, and gross unrealized gains and losses on all securities at December 31, 2015:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(in thousands)
Short-term investments:
FDIC guaranteed certificates of deposit	$	1,920	$	—	$	—	$	1,920
Corporate notes/bonds		6,980		—		5		6,975
Total short-term investments	$	8,900	$	—	$	5	$	8,895

Summarized Financial Assets Measured at Fair Value on Recurring Basis

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of December 31, 2016:

	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents:
Money market funds	$	10,949	$	—	$	—	$	10,949
Investments:
Available-for-sales securities—current:
FDIC guaranteed certificates of deposit		—		—		—		—
Corporate notes/bonds		—		—		—		—
Total	$	10,949	$	—	$	—	$	10,949

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of December 31, 2015:

	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents:
Money market funds	$	17,702	$	—	$	—	$	17,702
Investments:
Available-for-sales securities—current:
FDIC guaranteed certificates of deposit		—		1,920		—		1,920
Corporate notes/bonds		—		6,975		—		6,975
Total	$	17,702	$	8,895	$	—	$	26,597