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Debt - 2019 Refinancing Agreement - CB Warrants (Details) - USD ($)
2 Months Ended 3 Months Ended 12 Months Ended
Apr. 12, 2019
Feb. 24, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2019
Debt Instrument [Line Items]            
Percentage of number of shares 2.00%          
2019 Refinancing Term Loan embedded derivative            
Debt Instrument [Line Items]            
Warrant exercise price (in usd per share) $ 7.63          
Number of warrants per each share of common stock (in shares) 263,314 0        
Debt outstanding $ 0          
2019 Refinancing Agreement            
Debt Instrument [Line Items]            
Warrants term 5 years          
Warrants outstanding $ 900,000 $ 2,000,000   $ 2,000,000 $ 0  
Derivative liability           $ 400,000
Debt instrument, unamortized discount           1,300,000
Debt issuance costs, net           3,900,000
Interest expense, debt   100,000   500,000    
Amortization of debt issuance costs   $ 100,000 $ 1,000,000 $ 1,400,000    
Refinancing Agreement 2019 First Amendment            
Debt Instrument [Line Items]            
Debt issuance costs, net           $ 1,400,000