401(k) Retirement Savings Plan (Narrative) (Details) - USD ($)	12 Months Ended
Apr. 30, 2024	Apr. 30, 2023
Retirement Plans [Line Items]
Annual contribution to be matched by employer per participant	25.00%
Percentage of match to participant contributions	5.00%
Amount contributed towards retirement plans	$ 217,591	$ 204,924
Plan administration incurred total expenses	18,637	$ 17,325
Maximum [Member]
Retirement Plans [Line Items]
Annual contribution to be matched by employer per participant	$ 2,000

Defined Contribution Plan Employer Match To Employee First Annual Contributions Percent

No definition available.

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Retirement Plans [Line Items]

No definition available.

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Amount of administrative expense incurred by defined contribution plan.

No definition available.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

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Maximum amount the employee may contribute to a defined contribution plan.

No definition available.

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Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

No definition available.

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