Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Assets measured at fair value on a recurring basis

Assets measured at fair value on a recurring basis were as follows (in thousands):

	June 30, 2014
	Level 1		Level 2		Level 3		Total
Cash Equivalents
Money market funds	$	1,965	$	—	$	—	$	1,965
Commercial paper	—		9,498		—		9,498
Variable-rate demand notes	—		8,000		—		8,000
Total Cash Equivalents	1,965		17,498		—		19,463
Available for Sale Securities
Certificates of deposit	—		4,165		—		4,165
Corporate bonds	—		7,888		—		7,888
Commercial paper	—		6,997		—		6,997
Total Available for Sale Securities	—		19,050		—		19,050
Total assets measured at fair value	$	1,965	$	36,548	$	—	$	38,513