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Note 7 - Commitments
6 Months Ended
Jun. 30, 2016
Notes to Financial Statements  
Commitments Disclosure [Text Block]
7.           Commitments
 
Lease Agreement
 
We lease approximately 8,400 square feet of office and laboratory space located in Smyrna, Georgia (metropolitan Atlanta), pursuant to an operating lease which expires on December 31, 2016, with an additional 12-month renewal option. As of June 30, 2016, our future minimum lease payments for the current lease term (not including the renewal period) total $74,521 for the remainder of 2016.
 
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, 2016, we had approximately $543,000 of unrecorded outstanding purchase commitments to our vendors and subcontractors, all of which we expect will be due during the remainder of 2016 and the first half of 2017. We expect this entire amount to be reimbursable to us pursuant to currently outstanding government grants (See Note 10).