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Debts - Narrative (Details)
1 Months Ended 12 Months Ended
Oct. 04, 2021
USD ($)
$ / shares
shares
Feb. 12, 2020
shares
$ / shares
Oct. 31, 2021
USD ($)
shares
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Jan. 10, 2022
$ / shares
Oct. 03, 2021
$ / shares
May 18, 2021
USD ($)
Mar. 01, 2021
USD ($)
Apr. 04, 2018
USD ($)
Oct. 31, 2017
USD ($)
Debt Instrument [Line Items]                      
Long-term loan facility                   $ 15,000,000  
Conversion price per share on convertible note payable (in usd per share) | $ / shares   $ 5.12                  
Changes in fair value of promissory note       $ 0 $ 605,000            
Exercise price (in usd per share) | $ / shares           $ 3.30          
Gain on Yaskawa promissory note conversion       1,633,000 3,819,000            
Yaskawa                      
Debt Instrument [Line Items]                      
Conversion price per share on convertible note payable (in usd per share) | $ / shares $ 5.00           $ 5.12        
Number of shares issued (in shares) | shares 3,120,000                    
Warrant to purchase shares issued (in shares) $ 650,000                    
Exercise price (in usd per share) | $ / shares $ 6.00                    
Exercisable period of warrants (in years) 3 years                    
Tranche C Note                      
Debt Instrument [Line Items]                      
Revolving loan                 $ 10,000,000 $ 10,000,000  
Interest rate per annum (as a percent)                   6.00%  
Long-term loan facility                   $ 12,000,000  
Accrued interest on promissory note       200,000              
Interest expense       700,000 700,000            
Tranche B-1 Loan                      
Debt Instrument [Line Items]                      
Long-term loan facility               $ 2,000,000      
Yaskawa Note                      
Debt Instrument [Line Items]                      
Interest rate per annum (as a percent)                     1.00%
Interest expense         100,000            
Unsecured subordinated convertible promissory note     $ 15,600,000               $ 15,000,000
Maximum number of shares of common stock issuable (in shares) | shares   3,076,171                  
Changes in fair value of promissory note         (600,000)            
Yaskawa Note | Yaskawa                      
Debt Instrument [Line Items]                      
Accrued interest on promissory note $ 600,000                    
Principal and unpaid interest of convertible note $ 15,600,000                    
Number of shares issued (in shares) | shares     3,120,000                
Gain on Yaskawa promissory note conversion       $ 0 $ 1,221,000