Intellectual Property and Collaborative Agreements (Detail Textuals) (USD $) In Millions, unless otherwise specified	1 Months Ended		12 Months Ended
	Apr. 30, 2013 Tekmira	Nov. 30, 2012 Tekmira	Dec. 31, 2013 Novosom
Intellectual Property And Collaborative Agreements [Line Items]
Upfront payment received under license agreement		$ 0.3
Additional payment received	0.2
Cash payable			$ 0.15
Additional common stock reserved for future issuance as consideration			0.45