Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Stockholders' Equity Note [Abstract]

Schedule of changes in options outstanding

	Number of Options			Weighted Average Exercise Price For Share		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding and expected to vest at December 31, 2019		3,615,602		$	19.96		9.2	$	74,837,043
Granted		850,000		$	39.60		9.76	$	4,751,500
Exercised		(115,715	)	$	4.59		-	$	-
Forfeited		(215,312	)	$	21.58		-	$	-
Outstanding and expected to vest at June 30, 2020		4,134,575		$	24.35		8.9	$	84,841,303
Options exercisable at June 30, 2020		914,103		$	11.82		7.78	$	30,202,021

Schedule of changes in outstanding warrants

	Number of Shares			Weighted Average Exercise Price Per Share
Outstanding and vested at December 31, 2019		3,646,872		$	6.83
Granted		122,000			31.69
Exercised		(855,365	)		7.23
Forfeited		(8,138	)		16.00
Outstanding and vested at June 30, 2020		2,905,369		$	7.79

Schedule of stock-based compensation expense

	Six Months Ended June 30, 2020		Six Months Ended June 30, 2019
Research and development	$	3,122,500	$	186,400
General and administrative		9,219,400		611,800
Total	$	12,341,900	$	798,200