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Note 10 - Government Grants
6 Months Ended
Jun. 30, 2015
Notes to Financial Statements  
Government Grants [Text Block]
10.     Government Grants
 
We record revenue associated with government grants as the related costs and expenses are incurred and such revenue is reported as a separate line item in our statements of operations. Grant revenues recorded during the three month and six month periods ended June 30, 2015 and 2014 relate to grants from the NIH in support of our HIV vaccine development activities. There is an aggregate of $353,652 in approved grant funds remaining and available for use as of June 30, 2015, which we anticipate recognizing as revenue during the remainder of 2015 and the first half of 2016.