XML 103 R37.htm IDEA: XBRL DOCUMENT v3.21.2
Leases - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Apr. 30, 2021
Leases [Abstract]      
Right of use assets $ 8,838   $ 9,279
Operating cash paid to settle lease liabilities $ 500 $ 410  
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 $ 847 632  
Operating lease, short term, expense $ 347 $ 222  
Weighted average remaining lease term, operating lease (in years) 5 years 9 months 18 days    
Weighted average discount rate, operating lease 4.10%    
Weighted average remaining lease term, finance lease (in years) 4 years 1 month 6 days    
Weighted average discount rate, finance lease 10.00%