Note M - Pension and Other Postretirement Benefit Plans - Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized Over Next Fiscal Year (Details) $ in Thousands	Jun. 30, 2026 USD ($)
Pension Plan [Member]
Net transition obligation	$ 0
Prior service cost (benefit)	36
Actuarial net loss (gain)	226
Net amount to be recognized	262
Other Postretirement Benefits Plan [Member]
Net transition obligation	0
Prior service cost (benefit)	0
Actuarial net loss (gain)	(49)
Net amount to be recognized	$ (49)

Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

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Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

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