Stock Warrants (Tables)

6 Months Ended

Jun. 30, 2020

Stock Warrants

Summary of all warrant activity

A summary of all warrant activity for the Company for the six months ended June 30, 2020 and the year ended December 31, 2019 is as follows:

	Number of	Weighted Average
	Warrants	Exercise Price
Balance at December 31, 2018	18,915,851	$	3.85
Granted	—		—
Exercised	—		—
Forfeited	(200,852)		61.25
Balance at December 31, 2019	18,714,999		3.24
Granted	—		—
Exercised	—		—
Forfeited	—		—
Balance at June 30, 2020	18,714,999	$	3.24

Summary of all outstanding and exercisable warrants

A summary of all outstanding and exercisable warrants as of June 30, 2020 is as follows:

				Weighted Average
		Warrants	Warrants	Remaining
Exercise Price		Outstanding	Exercisable	Contractual Life
$	1.38	17,999,999	17,999,999	3.28 years
	18.20	714	714	2.49 years
	50.05	714,286	714,286	0.39 years
$	3.24	18,714,999	18,714,999	3.17 years