Net Loss Per Share (Schedule of Reconciliation of Net Loss to Net Loss Attributable to Heat Biologics, Inc.) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net loss	$ (4,246,805)	$ (3,309,081)	$ (7,980,032)	$ (6,549,809)
Net loss: Non-controlling interest	(196,734)	(90,166)	(403,195)	(140,956)
Net loss attributable to Heat Biologics, Inc.	$ (4,050,071)	$ (3,218,915)	$ (7,576,837)	$ (6,408,853)
Weighted-average number of common shares used in net loss per share attributable to Heat Biologics, Inc. - basic and diluted	14,727,682	3,524,483	9,894,367	3,112,412
Net loss per share attributable to Heat Biologics, Inc. - basic and diluted	$ (0.27)	$ (0.91)	$ (0.77)	$ (2.06)