Stockholders Equity (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders Equity

Summary of Warrant Information

At December 31, 2020, outstanding warrants to purchase shares of common stock are as follows:

Shares Underlying
Outstanding	Exercise		Expiration
Warrants	Price		Date
2,246	$	567.00	March 31, 2021
597,881	$	21.00	May 10, 2022
1,235,491	$	5.60	October 16, 2023
993,139	$	2.87	February 12, 2025
7,717,661	$	2.87	March 27, 2025
1,200	$	1,680.00	None
10,547,618