Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Contractual Obligation, Fiscal Year Maturity Schedule

The following table summarizes the Company’s contractual obligations as of December 31, 2014:

	Payments due by period
($ in thousands)	Total		2015		2016 and 2017		2018 and 2019		2020 and thereafter
License fee obligations(1)	$	950	$	483	$	308	$	106	$	53
Operating lease obligations(2)	$	11,168	$	1,211	$	2,508	$	2,670	$	4,779
Total	$	12,118	$	1,694	$	2,816	$	2,776	$	4,832

(1)Obligations for license agreement with the University of California, Los Angeles (UCLA) and sponsored research agreement with the Massachusetts Institute of Technology (MIT).  The amounts in the table assume the foregoing agreements are continued through their respective terms.  The agreements may be terminated at the option of either party.  In such event, the Company’s obligation would be limited to costs through the date of such termination.

(2)Operating lease obligations are stated based on the Amended Lease agreement for the office, warehouse and laboratory facilities executed in February 2012.