Amount of amortization expense attributable to debt issuance costs.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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The cash inflow associated with the amount received from holders exercising their stock warrants.

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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		9 Months Ended	12 Months Ended
	Nov. 10, 2021	Oct. 31, 2021	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Amortization of debt issuance costs			$ 0.1
Second Amended and Restated Loan and Security Agreement
Subsequent Event [Line Items]
Warrants granted to purchase (in shares)			49,869		49,869
Second Amended and Restated Loan and Security Agreement \| Minimum
Subsequent Event [Line Items]
Exercise price of warrants or rights (in dollars per share)			$ 0.525		$ 0.525
Second Amended and Restated Loan and Security Agreement \| Maximum
Subsequent Event [Line Items]
Exercise price of warrants or rights (in dollars per share)			$ 10.80		$ 10.80
Subsequent Event \| Second Amended and Restated Loan and Security Agreement
Subsequent Event [Line Items]
Proceeds from warrants exercises		$ 0.1
Subsequent Event \| Second Amended and Restated Loan and Security Agreement \| Forecast
Subsequent Event [Line Items]
Amortization of debt issuance costs				$ 0.2
Subsequent Event \| Restricted Stock Units
Subsequent Event [Line Items]
Grants in period (in shares)	500,000
Stock-based compensation costs not yet recognized	$ 24.3
Weighted-average expected recognition period	3 years 9 months 18 days