Related Party Transactions	3 Months Ended
Related Party Transactions	Mar. 31, 2014
Related Party Transactions [Abstract]
Related Party Transactions	11. Related party transactions The Company engages Mark Kroll, a member of the Board of Directors, to provide consulting services. Expenses relating to these services for the three months ended March 31, 2014 and 2013 were approximately $31,000 and $30,000, respectively. At March 31, 2014 and December 31, 2013, the Company had accrued liabilities for these consulting services of approximately $15,000 and $12,000, respectively.

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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