Net Loss Per Share (Schedule of Reconciliation of Net Loss to Net Loss Attributable to Heat Biologics, Inc.) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Net Loss Per Share
Net loss	$ (20,384,716)	$ (16,591,293)
Net loss: Non-controlling interest	(367,148)	(857,439)
Net loss attributable to Heat Biologics, Inc.	$ (20,017,568)	$ (15,733,854)
Weighted-average number of common shares used in net loss per share attributable to Heat Biologics, Inc.-basic and diluted	33,281,817	17,485,461
Net loss per share applicable to Heat Biologics, Inc - basic and diluted	$ (0.60)	$ (0.90)