Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Note F - Stock-based Compensation (Details Textual) - USD ($)	3 Months Ended		6 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 25, 2022	Dec. 30, 2022	Dec. 31, 2021	Mar. 31, 2023	Mar. 25, 2022
Performance Stock Awards [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)				103,600	118,100
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			3 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)	145.0		236,300		145.0
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)	437.9			440,900	437.9
Share-Based Payment Arrangement, Expense	$ 307,000	$ 237,000			$ 903,000	$ 672,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value (in dollars per share)	$ 8.37				$ 8.37
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 1,396				$ 1,396
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value					$ 0
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)					180,000.0	51.7
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)	308,600	268,500			308,600	268,500
Share-Based Payment Arrangement, Expense	$ 313,000	$ 294,000			$ 1,007,000	$ 913,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	1,359,000				$ 1,359,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$ 1,699,000	$ 1,695,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period (in shares)			0	29,800
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)					3 years
Restricted Stock [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)					1 year
Restricted Stock [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			3 years
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)					72,400	67,400
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)					3 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)	130,200	67,400			130,200	67,400
Share-Based Payment Arrangement, Expense	$ 116,000	$ 89,000			$ 340,000	$ 255,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value (in dollars per share)	$ 10.92				$ 10.92
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 825,000				$ 825,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value					$ 40,000	$ 475,000