Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis

Assets measured at fair value on a recurring basis as of December 31, 2015 and 2014 were as follows (in thousands):

	December 31, 2015
	Level 1		Level 2		Level 3		Total
Cash Equivalents
Money market funds	$	1	$	—	$	—	$	1
Corporate bonds	—		733		—		733
Total Cash Equivalents	1		733		—		734
Available-for-Sale Securities
Certificates of deposit(1)	—		25,234		—		25,234
Corporate bonds	—		4,764		—		4,764
Total Available-for-Sale Securities	—		29,998		—		29,998
Total assets measured at fair value	$	1	$	30,731	$	—	$	30,732

	December 31, 2014
	Level 1		Level 2		Level 3		Total
Cash Equivalents
Money market funds	$	2,591	$	—	$	—	$	2,591
Certificates of deposit(1)	—		980		—		980
Commercial paper	—		12,497		—		12,497
Variable-rate demand notes	—		8,000		—		8,000
Total Cash Equivalents	2,591		21,477		—		24,068
Available-for-Sale Securities
Certificates of deposit(1)	—		14,202		—		14,202
Corporate bonds	—		12,782		—		12,782
Total Available-for-Sale Securities	—		26,984		—		26,984
Total assets measured at fair value	$	2,591	$	48,461	$	—	$	51,052

⁽¹⁾ All certificates of deposit are within current FDIC insurance limits.