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Schedule of Other Current Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2021	Apr. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deposits	$ 70	$ 68
Other receivables	17	21
Prepaid insurance	97	194
Prepaid recruiting	148	12
Prepaid expenses- other	175	192
Other current assets	$ 507	$ 487

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Prepaid Recruiting and HR.

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Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter.

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