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Note I - Stock-based Compensation (Tables)

9 Months Ended

Jan. 31, 2023

Notes Tables

Stock Option Plan Comparison [Table Text Block]

	Restated Option Plan
Minimum exercise price as a percentage of fair market value at date of grant	100%
Last expiration date for outstanding options	May 1, 2032
Shares available for grant at January 31, 2023	262,500

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Nine Months Ended January 31,
		2023				2022
Expected terms (years)			5.5				5.5
Risk-free interest rate			3.59	%			0.86	%
Volatility			55	%			51	%
Dividend yield			-				-

Schedule of Share-based Compensation, Stock Options, Exercises [Table Text Block]

		Nine Months Ended January 31,
(Dollars in thousands)		2023				2022
Options exercised			23,000				57,000
Cash received from option exercises		$	1,216			$	274
Intrinsic value of options exercised		$	1,204			$	4,924

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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