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

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Note 8 - Share-based Compensation Plans (Details Textual) - The 2020 Equity Incentive Plan [Member] - USD ($)		12 Months Ended
	Mar. 03, 2020	Dec. 28, 2024	Dec. 30, 2023	Dec. 26, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized				1,500,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant		611,400
Share-Based Payment Arrangement, Expense		$ 310,094	$ 204,797
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total		$ 559,242
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition		2 years 7 months 20 days
Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period	10 years
Share-Based Payment Arrangement, Option [Member] \| Share-Based Payment Arrangement, Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	5 years