Note A - Basis of Presentation and Summary of Significant Accounting Policies - Fair Value of Derivative Instruments Classified As Level 2 Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Jun. 30, 2023
Derivative assets, current asset	$ 335	$ 390
Derivative assets, current liability	(345)	0
Fair Value, Inputs, Level 2 [Member]
Derivative assets, current asset	335	390
Derivative assets, noncurrent asset	221	547
Derivative assets, current liability	(345)	0
Fair Value Net Asset – all Derivative Contracts	211	937
Fair Value, Inputs, Level 2 [Member] \| Euro Forward Contract [Member]
Derivative assets, current asset	335	250
Derivative assets, noncurrent asset	0	15
Derivative assets, current liability	0	0
Fair Value, Inputs, Level 2 [Member] \| Swiss Franc Forward Contract [Member]
Derivative assets, current asset	0	140
Derivative assets, current liability	(345)	0
Fair Value, Inputs, Level 2 [Member] \| Interest Rate Swap [Member]
Derivative assets, noncurrent asset	$ 221	$ 532

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483466/210-20-50-3

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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- Definition

Fair value of asset after deduction of liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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