Annual report pursuant to Section 13 and 15(d)

Non-Controlling Interest (Details)

v3.19.1
Non-Controlling Interest (Details)
Dec. 31, 2018
Dec. 31, 2017
Pelican Therapeutics, Inc. [Member]    
Noncontrolling Interest [Line Items]    
Percentage of voting interests acquired in acquisition 85.00% 80.00%
Heat Biologics I, Inc [Member]    
Noncontrolling Interest [Line Items]    
Ownership interest in subsidiary 100.00% 92.50%