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Debt - Additional Information (Details)
1 Months Ended 3 Months Ended
Mar. 31, 2019
USD ($)
tranche
$ / shares
shares
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Oct. 31, 2019
$ / shares
shares
May 31, 2019
$ / shares
shares
Silicon Valley Bank          
Debt Instrument [Line Items]          
Debt instrument, maturity date Mar. 01, 2023        
Percentage of final payment on principal amount of refinanced advances 6.00%        
Long-term debt   $ 600,000      
Silicon Valley Bank | Tranche 1, 2, and 3          
Debt Instrument [Line Items]          
Interest rate 6.50%        
Amortization period of payments of principal plus interest amounts 33 months        
Silicon Valley Bank | Tranche 1, 2, and 3 | Prime Rate          
Debt Instrument [Line Items]          
Interest rate, percentage point added to reference rate 1.00%        
SVB and WestRiver          
Debt Instrument [Line Items]          
Expiration term 10 years        
Long-term debt   10,909,000      
SVB and WestRiver | Tranche 1          
Debt Instrument [Line Items]          
Number of warrants issued (in shares) | shares 37,606        
Exercise price of warrant (in usd per share) | $ / shares $ 4.73        
Proceeds from lines of credit $ 7,500,000        
SVB and WestRiver | Tranche 2          
Debt Instrument [Line Items]          
Number of warrants issued (in shares) | shares         12,130
Exercise price of warrant (in usd per share) | $ / shares         $ 10.86
SVB and WestRiver | Tranche 3          
Debt Instrument [Line Items]          
Number of warrants issued (in shares) | shares       24,262  
Exercise price of warrant (in usd per share) | $ / shares       $ 3.88  
Term Loan | Silicon Valley Bank          
Debt Instrument [Line Items]          
Interest expense   300,000 $ 400,000    
Term Loan | Silicon Valley Bank | Tranche 2          
Debt Instrument [Line Items]          
Line of credit facility, maximum borrowing capacity 2,500,000        
Term Loan | Silicon Valley Bank | Tranche 3          
Debt Instrument [Line Items]          
Line of credit facility, maximum borrowing capacity 5,000,000.0        
Term Loan | Silicon Valley Bank | Tranche 1, 2, and 3          
Debt Instrument [Line Items]          
Debt discount   $ 400,000      
Term Loan | SVB and WestRiver          
Debt Instrument [Line Items]          
Line of credit facility, maximum borrowing capacity $ 15,000,000.0        
Number of tranches | tranche 3        
Term Loan | SVB and WestRiver | Tranche 1          
Debt Instrument [Line Items]          
Line of credit facility, maximum borrowing capacity $ 7,500,000