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Accrued Expenses | 9 Months Ended
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Jan. 31, 2024
Payables and Accruals [Abstract] |
Accrued Expenses | (10) Accrued Expenses Accrued expenses consisted of the following at January 31, 2024 and April 30, 2023: Schedule of Accrued Expenses
|  | January 31, 2024 |  |  | April 30, 2023 |
|  | (in thousands) |
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 |
Accrued Professional fees at January 31, 2024 consist primarily of legal fees associated with the Paragon litigation (see Footnote 14).

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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