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Schedule of Accrued Expenses (Details) - USD ($) $ in Thousands	Jan. 31, 2024	Apr. 30, 2023
Payables and Accruals [Abstract]
Project costs	$ 135	$ 181
Employee incentive payments	1,137	1,948
Accrued salary and benefits	287	52
Professional fees	917
Investor relations	183
Other	332	165
Accrued expenses total	$ 2,991	$ 2,346

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Investor relations.

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
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Carrying value as of the balance sheet date of obligations incurred and payable for the acquisition of merchandise, materials, supplies and services pertaining to construction projects such as a housing development or factory expansion not classified as trade payables. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Amount of obligations incurred for employer-related costs classified as other, payable within one year or the normal operating cycle, if longer.

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