Capital Structure - Warrants (Details) - $ / shares	Sep. 30, 2021	Jan. 31, 2021
Common Stock Warrants
Exercise price per share (in dollars per share)		$ 0.001
Common Stock
Common Stock Warrants
Number of shares available under warrant (in shares)	6,083,147
Common Stock Warrants Expiration May 2022 \| Common Stock
Common Stock Warrants
Number of shares available under warrant (in shares)	2,380
Exercise price per share (in dollars per share)	$ 8.68
Common Stock Warrants Expiration Date Of June 2024 \| Common Stock
Common Stock Warrants
Number of shares available under warrant (in shares)	4,000,000
Exercise price per share (in dollars per share)	$ 12.50
Common Stock Warrants No Expiration \| Common Stock
Common Stock Warrants
Number of shares available under warrant (in shares)	1,676,923
Exercise price per share (in dollars per share)	$ 0.001
Common Stock Warrants Expiration June 2031 \| Common Stock
Common Stock Warrants
Number of shares available under warrant (in shares)	403,844
Exercise price per share (in dollars per share)	$ 2.60