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Note 6 - Commitments
6 Months Ended
Jun. 30, 2015
Notes to Financial Statements  
Commitments Disclosure [Text Block]
6.     Commitments
 
Lease Agreement
 
We lease approximately 8,400 square feet of office and laboratory space located in Smyrna, Georgia, pursuant to an operating lease which expires on December 31, 2015, with two successive 12-month renewal options. As of June 30, 2015, our future minimum lease payments for the current lease term (not including the renewal periods) total $73,046 for the remainder of 2015.
 
Other
Commitments
 
In the normal course of business, we may enter into various firm purchase commitments related to production and testing of our vaccine material, conduct of our clinical trials, and other research-related activities. As of June 30, 2015, we had approximately $115,300 of unrecorded outstanding purchase commitments to our vendors and subcontractors, all of which we expect will be due in 2015.