Note 6 - Retirement Plan (Details Textual) - USD ($)	12 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 320,000	$ 293,000
First 2% Employee Contributions [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	100.00%
Defined Contribution Plan Employee Contribution Percent	2.00%
Next 3% Employee Contributions [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	50.00%
Defined Contribution Plan Employee Contribution Percent	3.00%