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Debt and Convertible Preferred Stock Warrants - Additional Information (Detail)

v3.22.2
Debt and Convertible Preferred Stock Warrants - Additional Information (Detail) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2022
Apr. 30, 2021
Apr. 01, 2021
Jul. 31, 2020
Dec. 31, 2016
Apr. 30, 2021
Jul. 31, 2020
Mar. 31, 2022
Dec. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Apr. 30, 2022
Sep. 30, 2021
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Line of credit $ 5,900,000             $ 5,900,000 $ 5,900,000 $ 5,900,000        
Long term debt date upto which the facility is available               Mar. 31, 2022   Mar. 31, 2022        
Gain loss on extinguishment of debt                   $ (1,027,000) $ 0 $ 0    
Silicon Valley Bank [Member] | Growth Capital Advance [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Other Long-term Debt                 0 0 2,586,000      
Silicon Valley Bank [Member] | Revolving Credit Facility [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Line of credit $ 5,947,000             $ 5,947,000 $ 5,947,000 5,947,000 5,947,000      
SVB And Hercules Capital Inc [Member] | Common Stock And Additional Common Stock Warrants [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Class of warrants or rights exercise price per share     $ 4.43                      
Class of warrants or rights number of shares covered by the warrants or rights     4.43                      
Class of warrants or rights month of expiry     2033-04                      
SVB And Hercules Capital Inc [Member] | Common Stock Warrants [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Class of warrants or rights number of shares covered by the warrants or rights     213,328                      
Fair value of warrants per share     $ 6.08                      
Stock shares issued during the period on exercise of warrants                 213,328          
Adjustment to additional paid in capital shares issued upon exercise of warrants value                 $ 1,300,000          
SVB And Hercules Capital Inc [Member] | Additional Common Stock Warrants [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Class of warrants or rights number of shares covered by the warrants or rights     53,332                      
Loan And Security Agreement [Member] | Silicon Valley Bank [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Long term debt date of maturity         2022-12                  
Loan And Security Agreement [Member] | Silicon Valley Bank [Member] | Growth Capital Advance [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Debt instrument face value         $ 3,900,000                  
Loan And Security Agreement [Member] | Silicon Valley Bank [Member] | Growth Capital Advance [Member] | Prime Rate [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Debt instrument face value         3,900,000                  
Loan And Security Agreement [Member] | Silicon Valley Bank [Member] | Revolving Credit Facility [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Line of credit maximum borrowing capacity         $ 25,000,000                  
Loan revolver borrower capacity as percentage of inventory balance         60.00%                  
Loan And Security Agreement [Member] | Silicon Valley Bank [Member] | Revolving Credit Facility [Member] | Letter of Credit [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Line of credit maximum borrowing capacity         $ 6,000,000                  
Amendment To The Loan And Security Agreement [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Gain loss on extinguishment of debt                   $ 1,000,000        
Amendment To The Loan And Security Agreement [Member] | Silicon Valley Bank [Member] | Revolving Credit Facility [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Loan revolver borrower capacity as percentage of inventory balance 65.00%             65.00% 65.00% 65.00%        
Line of credit commitent fees percentage on unsed amount                 0.20%          
Letter of credit outstanding $ 3,100,000             $ 3,100,000 $ 3,100,000 $ 3,100,000        
Credit card outstanding $ 1,500,000             $ 1,500,000 $ 3,500,000 $ 3,500,000        
Long term debt variable interest rate percentage 3.25%             3.25% 3.25% 3.25%        
Line of Credit Facility, Expiration Date               Mar. 31, 2023   Mar. 31, 2023        
Debt instrument terms of interest payment               Interest on the Loan Revolver is payable monthly in arrears.   Interest on the Loan Revolver is payable monthly in arrears        
Debt instrument effective interest rate percentage 3.85%             3.85% 3.85% 3.85%        
Minimum liquidity to be maintained $ 45,000,000             $ 45,000,000 $ 45,000,000 $ 45,000,000        
Amendment To The Loan And Security Agreement [Member] | Silicon Valley Bank [Member] | Revolving Credit Facility [Member] | Letter of Credit [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Line of credit maximum borrowing capacity $ 10,000,000             $ 10,000,000 10,000,000 10,000,000        
Mezanine And Loan And Security Agreement [Member] | SVB And Hercules Capital Inc [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Debt instrument face value     $ 60,000,000           $ 60,000,000 $ 60,000,000        
Long term debt variable interest rate percentage 8.75%             8.75% 8.75% 8.75%        
Other Long-term Debt $ 60,000,000             $ 60,000,000 $ 60,000,000 $ 60,000,000        
Debt instrument variable interest rate spread 5.50%                 5.50%        
Debt instrument maturity start date Nov. 01, 2022                 Nov. 01, 2022        
Debt instrument frequency of periodic payment           30       30        
Long term debt balloon payment percentage                         6.75%  
Long Term Debt Commitement By Lender                 6.75% 6.75%        
Mezanine And Loan And Security Agreement [Member] | SVB And Hercules Capital Inc [Member] | Maximum [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Debt instrument effective interest rate percentage 14.44%             14.44% 14.44% 14.44%        
Mezanine And Loan And Security Agreement [Member] | SVB And Hercules Capital Inc [Member] | Minimum [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Debt instrument effective interest rate percentage 11.39%             11.39% 11.39% 11.39%        
Mezanine And Loan And Security Agreement [Member] | SVB And Hercules Capital Inc [Member] | SVB [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Long Term Debt Commitement By Lender                 51.00% 51.00%     51.00%  
Mezanine And Loan And Security Agreement [Member] | SVB And Hercules Capital Inc [Member] | Hercules Capital Inc [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Long Term Debt Commitement By Lender                 49.00% 49.00%     49.00%  
Mezanine And Loan And Security Agreement [Member] | SVB And Hercules Capital Inc [Member] | Tranche One [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Other Long-term Debt   $ 25,000,000       $ 25,000,000                
Mezanine And Loan And Security Agreement [Member] | SVB And Hercules Capital Inc [Member] | Tranche Two [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Other Long-term Debt                           $ 25,000,000
Mezanine And Loan And Security Agreement [Member] | SVB And Hercules Capital Inc [Member] | Tranche Three [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Line of credit                 $ 10,000,000 $ 10,000,000        
Other Long-term Debt                 $ 10,000,000 $ 10,000,000        
Triple Point Loan Facility [Member] | Triple Point Venture Growth BDC Corp And Its Affiliates [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Long term debt variable interest rate percentage   5.50%   5.50%   5.50% 5.50%              
Debt instrument variable interest rate spread   2.25%   1.25%                    
Triple Point Loan Facility [Member] | Triple Point Venture Growth BDC Corp And Its Affiliates [Member] | Tranche One [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Proceeds from other long term debt                     20,000,000      
Repayment of other long term debt           $ 20,000,000                
Triple Point Loan Facility [Member] | Triple Point Venture Growth BDC Corp And Its Affiliates [Member] | Tranche Two [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Proceeds from other long term debt                     $ 20,000,000      
Repayment of other long term debt             $ 20,000,000              
Atel Loan Facility [Member] | Triple Point Venture Growth BDC Corp And Its Affiliates [Member] | Tranche Three [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Long term debt term                 36 months 36 months        
Atel Loan Facility [Member] | Triple Point Venture Growth BDC Corp And Its Affiliates [Member] | Tranche Four [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Long term debt term                 36 months 36 months        
Atel Loan Facility [Member] | Atel [Member] | Tranche Three [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Debt instrument effective interest rate percentage 19.23%             19.23% 19.23% 19.23%        
Other Long-term Debt $ 1,300,000             $ 1,300,000 $ 1,500,000 $ 1,500,000        
Long​ term​ debt​ month​ of maturity               2023-04   2023-04        
Atel Loan Facility [Member] | Atel [Member] | Tranche Four [Member]                            
Debt And Convertible Preferred Stock Warrants [Line Items]                            
Debt instrument effective interest rate percentage 19.23%             19.23% 19.23% 19.23%        
Other Long-term Debt $ 200,000             $ 200,000 $ 300,000 $ 300,000        
Long​ term​ debt​ month​ of maturity               2023-05   2023-05