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Note H - Employee Benefit Plans (Details Textual) - USD ($)		12 Months Ended
	Jan. 01, 2025	Jun. 30, 2025	Jun. 30, 2024
Health Insurance Plan Premium Expense		$ 1,600,000	$ 1,400,000
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount		200,000	900,000
Deferred Compensation Arrangement with Individual, Cash Award Forfeited, Amount		$ 0	$ 0
Number of Years Compensation Used for Benefit Obligation Assumptions (Year)		5 years
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate		5.29%	5.28%
Defined Benefit Plan, Plan Assets, Contributions by Employer		$ 48,000	$ 116,000
Defined Benefit Plan, Expected Amortization, Next Fiscal Year		$ 17,000
Large-cap Funds [Member]
Defined Benefit Plan Equity Securities by Type, Percentage		74.00%
Mid-cap Funds [Member]
Defined Benefit Plan Equity Securities by Type, Percentage		20.00%
Small Cap Funds [Member]
Defined Benefit Plan Equity Securities by Type, Percentage		6.00%
Fixed Income Funds [Member]
Defined Benefit Plan Equity Securities by Type, Percentage		52.00%
Corporate, Foreign, or Emerging Market Funds [Member]
Defined Benefit Plan Equity Securities by Type, Percentage		48.00%
Money Market Funds [Member]
Defined Benefit Plan Equity Securities by Type, Percentage		81.00%
Commodities Investment [Member]
Defined Benefit Plan Equity Securities by Type, Percentage		19.00%
First Contributions [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	6.00%
Profit-sharing Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount		$ 500,000	600,000
Discretionary Profit-sharing Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount		$ 0	$ 0

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- Definition

The period of employment before retirement that is used to determine what amount of compensation to use as a a baseline for the companies defined benefit plan.

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- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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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.

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

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