Net Loss Per Share - Reconciliation of Net Loss (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net Loss Per Share
Net loss	$ (7,623,140)	$ (6,373,420)
Net loss: Non-controlling interest	(90,962)	(81,314)
Net loss attributable to Heat Biologics, Inc.	$ (7,532,178)	$ (6,292,106)
Weighted Average Number of Shares Outstanding, Basic and Diluted	24,199,916	8,183,154
Net loss per share, basic and diluted	$ (0.31)	$ (0.77)