Lease Obligations (Tables)

6 Months Ended

Jun. 30, 2015

Leases [Abstract]

Payments expected to received from sublease agreements

The following table provides a summary of operating lease obligations and payments expected to be received from sublease agreements as of June 30, 2015 (in thousands):

Operating lease obligations:	Lease Termination Date	Less than 1 year		1 year		2 years		3 years		4 years		Total
Corporate headquarters- San Diego, CA	June 2019	$	691	$	709	$	727	$	747	$	—	$	2,874
Bioscience and Technology Business Center- Lawrence, KS	December 2017	54		54		27		—		—		135
Vacated office and research facility-San Diego, CA	August 2015	191		—		—		—		—		191
Vacated office and research facility- Cranbury, NJ	August 2016	2,614		436		—		—		—		3,050
Total operating lease obligations		$	3,550	$	1,199	$	754	$	747	$	—	$	6,250
Sublease payments expected to be received:
Corporate headquarters- San Diego, CA	June 2019	$	436	$	446	$	457	$	469	$	—	$	1,808
Vacated office and research facility- San Diego, CA	August 2015	78		—		—		—		—		78
Office and research facility- Cranbury, NJ	August 2016	212		35		—		—		—		247
Net operating lease obligations		$	2,824	$	718	$	297	$	278	$	—	$	4,117