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Stock Options and Stock-based Compensation	3 Months Ended
	Jul. 31, 2025
Equity [Abstract]
Stock Options and Stock-based Compensation	Stock Options and Stock-based Compensation The Company recognizes compensation costs related to stock options and other stock awards granted by the Company as operating expenses over their vesting period. In August 2023, the stockholders approved the 2023 Omnibus Incentive Plan ("2023 Plan"), which enables the Company to grant equity-based awards, with potential recipients including directors, consultants, and employees. This plan replaces the 2017 Omnibus Incentive Plan ("2017 Plan"). All outstanding equity granted under the 2017 Plan remain subject to, and will be settled under, the 2017 Plan. At the date of approval of the 2023 Plan, there were 64,633 shares available for new awards under the 2017 Plan, and 168,791 shares available for issuance under equity awards outstanding under the 2017 Plan. These shares that were available for new awards and any shares subject to outstanding awards under the 2017 Plan that subsequently cease to be subject to such awards are available under the 2023 Plan. The 2023 Plan also increased the total number of shares reserved for issuance under the Company's equity compensation plans by 310,000, for a total of 374,633 shares initially reserved for issuance under the 2023 Plan. At July 31, 2025, there were 291,326 shares available for future issuance under the 2023 Plan. In June 2025, the Company granted 72,728 RSUs under the 2023 Plan. These RSUs include both a service and a performance component, vesting over a three-year period. The recognized expense is based upon the vesting period for service criteria and estimated attainment of the performance criteria at the end of the three-year period, based on the ratio of cumulative days of service to total days over the three-year period. The Company recorded stock-based compensation expense of $431,000 during the three months ended July 31, 2025 with the remaining estimated stock-based compensation expense of $3,877,000 to be recorded over the remaining vesting periods. The Company recorded stock-based compensation expense of $318,000 during the three months ended July 31, 2024. Director's fees paid with shares of common stock in lieu of cash in accordance with Director compensation guidelines were $180,000 for the three months ended July 31, 2025, of which $90,000 was included in stock-based compensation.

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- Definition

The entire disclosure for shareholders' equity and share-based payment arrangement. Includes, but is not limited to, disclosure of policy and terms of share-based payment arrangement, deferred compensation arrangement, and employee stock purchase plan (ESPP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/505/tableOfContent

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/718/tableOfContent

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