Related party transactions:	3 Months Ended
Related party transactions:	Mar. 31, 2014
Related party transactions:
Related party transactions:	5. Related party transactions: Office lease The Company’s headquarters is located in an office building owned by Niobium LLC (a successor to 6715 Kenilworth Avenue Partnership). The two owners of the company are the Company’s Chief Executive Officer, David Schaeffer, who has a 51% interest in the partnership and his wife who has a 49% interest. The Company paid $0.2 million and $0.2 million in the three months ended March 31, 2014 and 2013, for rent and related costs (including taxes and utilities) to this company, respectively. The lease ends on August 31, 2015 and is cancellable by the Company upon 60 days’ notice.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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