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Restricted Cash	9 Months Ended
Restricted Cash	Sep. 30, 2013
Cash And Cash Equivalents [Abstract]
Restricted Cash	(8) Restricted Cash As part of the Company’s lease arrangement for its office and laboratory facility, the Company is required to restrict $311,000 of cash held in a certificate of deposit securing a line of credit for the lessor. During 2013, the $311,000 was transferred from non-current assets to other current assets since the Company’s lease term expires on May 31, 2014.