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Schedule of Right-of Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2022 | Apr. 30, 2021
Leases |  |
Operating lease cost | $ 368 | $ 330
Short-term lease cost | 35 | 17
Total lease cost | 403 | 347
Operating right-of-use asset, net | 752 | 1,036
Right-of-use liability- current | 319 | 347
Right-of-use liability- long term | 538 | $ 819
Total lease liability | $ 857 |
Weighted average remaining lease term- operating leases | 2 years 4 months 17 days |
Weighted average discount rate- operating leases | 8.30% |

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