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Share-Based Payments (Tables) | 9 Months Ended
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Jan. 31, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Allocation Of Share Based Compensation Expense | Stock-based compensation expense was recognized as follows (table in thousands):
| Three Months Ended January 31, |  | Nine Months Ended January 31, |
| 2025 |  | 2024 |  | 2025 |  | 2024 |
General and administrative | $ | 209 |  |  | $ | 272 |  |  | $ | 299 |  |  | $ | 487 |  |
Sales and marketing | 31 |  |  | 73 |  |  | 122 |  |  | 160 |  |
Research and development | 2 |  |  | 5 |  |  | 9 |  |  | 17 |  |
Cost of oncology revenue | 14 |  |  | 29 |  |  | 93 |  |  | 191 |  |
Total stock-based compensation expense | $ | 256 |  |  | $ | 379 |  |  | $ | 523 |  |  | $ | 855 |  |
Schedule of Valuation Assumptions For Stock Options | Black-Scholes assumptions used to calculate the fair value of options granted during the three and nine months ended January 31, 2025 and 2024 were as follows:
| Three Months Ended January 31, |  | Nine Months Ended January 31, |
| 2025 |  | 2024 |  | 2025 |  | 2024 |
Expected term in years | 6 |  | 6 |  | 6 |  | 6 |
Risk-free interest rates | 4.09% - 4.34% |  | 4.49% |  | 3.58% - 4.48% |  | 3.95% - 4.49% |
Volatility | 54.54% - 56.37% |  | 63.41% |  | 54.54% - 62.72% |  | 62.83% - 63.41% |
Dividend yield | —% |  | —% |  | —% |  | —% |
Schedule of Stock Option Activity | The Company’s stock options activity for the nine months ended January 31, 2025 was a s follows:
| Directors and Employees | Non- Employees |  |  | Total |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life (Years) |  | Aggregate Intrinsic Value
Outstanding, April 30, 2024 | 1,883,166 |  | 36,331 |  |  |  | 1,919,497 |  |  | $ | 5.04 |  |  | 5.2 |  | $ | 2,172,000 |
Granted | 280,455 |  | — |  |  |  | 280,455 |  |  | 4.49 |  |  | 9.7 |  |
Exercised | (111,804) |  | — |  |  |  | (111,804) |  |  | 2.81 |  |  |  |  |
Forfeited | (213,625) |  | — |  |  |  | (213,625) |  |  | 6.50 |  |  |  |  |
Canceled | (3,750) |  | — |  |  |  | (3,750) |  |  | 5.99 |  |  |  |  |
Expired | (36,666) |  | — |  |  |  | (36,666) |  |  | 5.43 |  |  |  |  |
Outstanding, January 31, 2025 | 1,797,776 |  | 36,331 |  |  |  | 1,834,107 |  |  | $ | 4.91 |  |  | 5.1 |  | $ | 11,196,000 |
Vested and expected to vest as of January 31, 2025 | 1,797,776 |  | 36,331 |  |  |  | 1,834,107 |  |  | $ | 4.91 |  |  | 5.1 |  | $ | 11,196,000 |
Exercisable as of January 31, 2025 | 1,561,755 |  | 5,625 |  |  |  | 1,567,380 |  |  | $ | 4.92 |  |  | 4.4 |  | $ | 9,571,000 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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