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Note 10 - Subsequent Events	6 Months Ended
	Jun. 30, 2014
Subsequent Events [Abstract]
Subsequent Events [Text Block]	10.     Subsequent Events In July 2014, we issued 250,000 shares of our common stock for certain consulting services from a third party and recorded stock-based compensation expense of $50,000 related to the issuance. As discussed in Note 8, in July 2014, the NIH awarded us a $290,000 SBIR grant entitled “Enhancing Protective Antibody Responses for a GM-CSF Adjuvanted HIV Vaccine.” This grant award is for the second year of a two year project period beginning August 1, 2013. In August 2014, we issued 50,000 shares of our common stock related to conversions of our Series B Convertible Preferred Stock.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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