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Stock-Based Payments (Tables)

3 Months Ended

Jul. 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 July 31,
			2025						2024
General and administrative			$	148					$	185
Sales and marketing			12						40
Research and development			32						4
Cost of oncology revenue			16						29
Total stock-based compensation expense			$	208					$	258

Schedule of Valuation Assumptions For Stock Options

Black-Scholes and Monte Carlo assumptions used to calculate the fair value of Champions options granted by the Company during the three months ended July 31, 2025 and 2024 were as follows:

			Three Months Ended July 31,
			2025						2024
Expected term in years			6						6
Risk-free interest rates			4.08% - 4.50%						4.48%
Volatility			55.65% - 62.00%						62.72%
Dividend yield			—%						—%

Black-Scholes assumptions used to calculate the fair value of Corellia options granted by Corellia during the three months ended July 31, 2025 and 2024 were as follows:

			Three Months Ended July 31,
			2025						2024
Expected term in years			6						0
Risk-free interest rates			4.15%						—%
Volatility			65%						—%
Dividend yield			—%						—%

Schedule of Stock Option Activity

The Company’s stock options activity for the 2021 and 2010 equity incentive plans for the three months ended July 31, 2025 was as follows:

			Directors and Employees			Non- Employees									Total						Weighted Average Exercise Price						Weighted Average Remaining Contractual Life (Years)						Aggregate Intrinsic Value
Outstanding, April 30, 2025			1,642,351			36,331									1,678,682						$	4.98					4.9						$	4,434,000
Granted			874,000			—									874,000						7.39						9.9
Exercised			(11,251)			—									(11,251)						2.10
Forfeited			(9,625)			—									(9,625)						7.90
Outstanding, July 31, 2025			2,495,475			36,331									2,531,806						$	5.81					6.5						$	3,514,000
Vested and expected to vest as of July 31, 2025			2,495,475			36,331									2,531,806						$	5.81					6.5						$	3,514,000
Exercisable as of July 31, 2025			1,504,457			5,625									1,510,082						$	4.90					4.2						$	3,259,000

    

The stock options activity for the Corellia 2023 Global equity incentive plan for the three months ended July 31, 2025 was as follows:

			Directors and Employees			Non- Employees						Total						Weighted Average Exercise Price						Weighted Average Remaining Contractual Life (Years)						Aggregate Intrinsic Value
Outstanding, April 30, 2025			—			—						—						$	—					0						$	—
Granted			300			—						300						1,682.00						9.81
Outstanding, July 31, 2025			300			—						300						$	1,682.00					9.81						$	110,000
Vested and expected to vest as of July 31, 2025			300			—						300						$	1,682.00					9.81						$	110,000
Exercisable as of July 31, 2025			—			—						—						$	—					—						$	—

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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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.

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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.

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