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No definition available.

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- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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No definition available.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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Stock-Based Payments - Narrative (Details) $ / shares in Units, $ in Thousands	3 Months Ended			9 Months Ended		34 Months Ended
	Jan. 31, 2026 USD ($) $ / shares shares	Jul. 31, 2025 shares	Jan. 31, 2025 USD ($) $ / shares	Jan. 31, 2026 USD ($) $ / shares shares	Jan. 31, 2025 USD ($) $ / shares	Jan. 31, 2026 USD ($) $ / shares shares	Apr. 30, 2025 shares	Mar. 29, 2023 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense \| $	$ 423		$ 256	$ 880	$ 523
Weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 3.54		$ 2.64	$ 4.16	$ 2.58
Share repurchase program, authorized amount \| $								$ 5,000
Treasury stock (in shares) \| shares						120,300
Treasury stock average price (in dollars per share) \| $ / shares						$ 5.73
Treasury stock approximate value \| $						$ 708
Remaining repurchase amount \| $	$ 4,300			$ 4,300		$ 4,300
2023 Global Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration term of awards				10 years
Options granted outstanding (in shares) \| shares	300			300		300	0
Weighted-average grant date fair value (in dollars per share) \| $ / shares				$ 1,364
Granted (in shares) \| shares	0	0		300
2023 Global Equity Incentive Plan \| Time-based awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense \| $	$ 314			$ 314		$ 314
Weighted average recognition period (in years)				2 years 3 months 18 days
2023 Global Equity Incentive Plan \| Share-Based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				25.00%
2023 Global Equity Incentive Plan \| Share-Based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				6.25%
2023 Global Equity Incentive Plan \| Share-Based Payment Arrangement, After Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Equity Incentive Plan 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares) \| shares	173,000			173,000		173,000
Expiration term of awards				10 years
Strike price as a percent of fair market value				1
Equity Incentive Plan 2021 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares) \| shares	2,000,000			2,000,000		2,000,000
Equity Incentive Plan 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration term of awards				10 years
Strike price as a percent of fair market value				1
Options granted outstanding (in shares) \| shares	734,000			734,000		734,000
Equity Incentive Plan 2010 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares) \| shares	30,000,000			30,000,000		30,000,000
2021 And 2010 Equity Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted outstanding (in shares) \| shares	2,548,665			2,548,665		2,548,665	1,678,682
Granted (in shares) \| shares				1,103,972
Unrecognized stock-based compensation expense \| $	$ 4,100			$ 4,100		$ 4,100
Forfeited (in shares) \| shares				58,625
2021 And 2010 Equity Incentive Plans \| Time-based awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense \| $	1,500			$ 1,500		1,500
Weighted average recognition period (in years)				3 years 18 days
2021 And 2010 Equity Incentive Plans \| Market based awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense \| $	780			$ 780		780
Weighted average recognition period (in years)				2 years
2021 And 2010 Equity Incentive Plans \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense \| $	1,800			$ 1,800		$ 1,800
2021 And 2010 Equity Incentive Plans \| Performance Shares \| Subject to Forfeiture
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited (in shares) \| shares				465,000
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense \| $	35		$ 2	$ 99	$ 9
Research and development \| 2023 Global Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense \| $	$ 34,000			$ 95