Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Measurements

Summary of information about the derivative, conversion option and warrant liabilities that were measured at fair value on a recurring basis

		June 30, 2019
	(unaudited)
		Level 1		Level 2		Level 3		Total
Warrant liability		$	—	$	—	$	5,182,273	$	5,182,273
Total fair value		$	—	$	—	$	5,182,273	$	5,182,273

	December 31, 2018
	Level 1		Level 2		Level 3		Total
Warrant liability	$	—	$	—	$	220,376	$	220,376
Total fair value	$	—	$	—	$	220,376	$	220,376

Summary of change in the estimated fair value of level 3 liabilities

	Six Months Ended
	June 30, 2019
	Warrant
	Liability
	(unaudited)
Beginning fair value of Level 3 liability	$	220,376
Additions		5,122,928
Extinguishment		—
Change in fair value		(161,031)
Ending fair value of Level 3 liability	$	5,182,273