Note L - Stock-based Compensation - Shares Available for Future Options (Details) - Stock Options [Member] - shares	Jun. 30, 2024	Jun. 30, 2023
The 2020 Directors Plan [Member]
Shares Available for Grant (in shares)	521,550	560,531
The 2021 LTI Plan [Member]
Shares Available for Grant (in shares)	41,439	233,270

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant