Quarterly report pursuant to Section 13 or 15(d)

Borrowing Arrangements - Additional Information (Detail)

Borrowing Arrangements - Additional Information (Detail) - USD ($)
3 Months Ended
May 31, 2020
Feb. 27, 2018
Mar. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]        
Long-term debt, carrying value     $ 35,700,000 $ 35,500,000
Debt Instrument [Line Items]        
Credit Facility, principal payments     4,900,000  
Credit Facility, interest expense     4,900,000  
Exit fees and prepayment penalties     100,000  
Loss on extinguishment of debt     $ 1,200,000  
K2 Loan and Security Agreement        
Debt Instrument [Line Items]        
Maximum borrowing capacity under loan $ 45,000,000.0      
Loan and security agreement $ 35,000,000.0      
Loan and security agreement, lapsed amount       10,000,000.0
Interest rate     8.45%  
Debt net     $ 2,500,000  
Debt instrument, covenant compliance     The Company was in compliance with the debt covenants at March 31, 2022 and expects to be compliant with the debt covenants for the next twelve months.  
Total debt     $ 35,000,000 $ 35,000,000.0
Long-term debt, carrying value     35,737,000  
K2 Loan and Security Agreement | Loan Facility Tranche Two        
Debt Instrument [Line Items]        
Additionally incurred prepaid facilities fee     $ 200,000  
K2 Loan and Security Agreement | Prime Rate        
Debt Instrument [Line Items]        
Interest rate     5.20%  
Term Loan Facility | Perceptive        
Debt Instrument [Line Items]        
Maximum borrowing capacity under loan   $ 10,000,000.0    
Increase in applicable margin percentage on event of default   4.00%    
Period for which interest only payments will be made   24 months    
Credit Facility, principal payments   $ 200,000    
Deferred finance costs   500,000    
Debt issuance cost, net of discount   $ 1,500,000    
Number of shares issued for each warrant   190,000    
Warrant exercisable period   7 years    
Warrant exercise price   $ 9.5972    
Fair value of the warrant recorded as a debt discount   $ 1,500,000    
Term Loan Facility | Perceptive | LIBOR        
Debt Instrument [Line Items]        
Applicable margin percentage   11.00%    
Term Loan Facility | Perceptive | Term Loan Drawn on Effective Date of Credit Facility        
Debt Instrument [Line Items]        
Proceeds from initial term loan on closing date of Credit Facility   $ 5,000,000.0    
Term Loan Facility | Perceptive | Additional Term Loan Drawn Six Months Following Effective Date of Credit Facility        
Debt Instrument [Line Items]        
Remaining available amount from credit facility did not draw down   $ 5,000,000.0