XML 68 R53.htm IDEA: XBRL DOCUMENT v3.21.2
Leases - Schedule of Future Minimum Lease Payments Under Operating Lease (Details)
$ in Thousands
Apr. 30, 2021
USD ($)
Leases [Abstract]  
2022 $ 393
2023 391
2024 362
2025 184
Total future minimum lease payments 1,330
Less imputed interest (163)
Total $ 1,166