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Leases - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Oct. 31, 2022
Oct. 31, 2021
Oct. 31, 2022
Oct. 31, 2021
Apr. 30, 2022
Leases [Abstract]          
Right of use assets $ 9,908   $ 9,908   $ 7,573
Operating cash paid to settle lease liabilities     $ 1,026 $ 1,006  
Remaining lease term (in years)     9 years    
Option to extend, term (in years)     5 years    
Option to terminate, term (in years)     1 year    
Operating lease, expense 900 $ 707 $ 1,734 1,555  
Operating lease, short term, expense $ 398 $ 201 $ 708 $ 549  
Weighted average remaining lease term, operating lease (in years) 5 years 6 months   5 years 6 months    
Weighted average discount rate, operating lease 4.90%   4.90%    
Weighted average remaining lease term, finance lease (in years) 3 years 7 months 6 days   3 years 7 months 6 days    
Weighted average discount rate, finance lease 7.00%   7.00%