Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2020

Stockholders' Equity Attributable to Parent [Abstract]

Summary of Warrant Activity by Warrant Type

A summary of the Company’s warrant activity is set forth below:

Warrant Type	Cash Exercise Price per share		Warrants Outstanding December 31, 2019	Warrants Exercised		Warrants Outstanding March 31, 2020
				Cash	Cashless
Common stock warrant (Series D-1)	$	5.54	14,866	—	—	14,866
Common stock warrants (Series F)	$	9.22	377,402	—	—	377,402
Public Warrants (PHUNW)	$	11.50	1,761,291	—	—	1,761,291
Private Placement Warrants	$	11.50	1,658,381	—	—	1,658,381
Unit Purchase Option Warrants	$	11.50	24,172	—	—	24,172
Total			3,836,112	—	—	3,836,112