U.S. Government Contracts (Details Textual) (USD $) In Millions, unless otherwise specified	Aug. 29, 2012 August 2012 Agreement (Intramuscular administration) [Member]	Sep. 30, 2012 Phase one Marburg [Member]	Sep. 30, 2012 Phase two three four Marburg [Member]	Sep. 30, 2012 July 2010 Agreement (Ebola and Marburg) [Member] Segment
U.S. Government Contracts (Textual) [Abstract]
Number of segments				4
Period of performance spanning				4 years
Funding outstanding		$ 19.5
Estimated funding			84.4
Funding to evaluate the feasibility of intramuscular route of administration	$ 3.9