Quarterly report pursuant to Section 13 or 15(d)

Long-term Debt - Convertible Notes 2020 (Details)

v3.22.1
Long-term Debt - Convertible Notes 2020 (Details) - 2020 Convertible Notes Member - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Sep. 30, 2020
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]          
Gross proceeds from issuance $ 2.0        
Interest rate 6.00%        
Minimum gross proceeds from sale of preferred stock required for conversion $ 2.0        
Conversion price as percentage of the price per share paid by the other investors         80.00%
Embedded derivative fair value         $ 1.0
Initial carrying value         $ 3.0
Total interest incurred   $ 0.0 $ 0.1    
Series B-1 Preferred Stock          
Debt Instrument [Line Items]          
Minimum gross proceeds from sale of preferred stock required for conversion       $ 10.0