Convertible Preferred Stock and Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2020

Stockholders' Equity Note [Abstract]

Summary of Option and Stock Appreciation Rights Activity

A summary of the option and stock appreciation rights activity for the three month period ended March 31, 2020 is as follows:

	Number of Options/SARs			Range of Exercise Price		Weighted Average Exercise Price per Share
Outstanding, December 31, 2019		1,857,599			$0.74 - $36.20	$	2.22
Granted		887,250			$3.98 - $4.52	$	4.51
Exercised		(10,046	)		$0.74 - $2.03	$	1.19
Forfeited		(73,801	)		$0.74 - $4.04	$	2.75
Outstanding, March 31, 2020		2,661,002			$0.74 - $36.20	$	2.97

Summary of Restricted Stock Unit Activity

A summary of the restricted stock unit activity for the three month period ended March 31, 2020 is as follows:

	Number of Restricted Stock Units			Weighted Average Grant Date Fair Value per Unit
Outstanding, December 31, 2019		840,712		$	1.28
Granted		210,000		$	5.24
Vested		(109,489	)	$	2.00
Forfeited		(250	)	$	0.78
Outstanding, March 31, 2020		940,973		$	2.08