Note 14 - Income Taxes (Details Textual)	9 Months Ended		12 Months Ended
	Jan. 01, 2022 Rate	Dec. 26, 2020 Rate	Mar. 31, 2021 Rate
Effective Income Tax Rate Reconciliation, Percent, Total (Rate)	23.60%	20.90%
Effective Income Tax Rate Reconciliation, Net Operating Loss Carryback Rate Difference (Rate)	3.20%		3.20%
Effective Interest Tax Rate Reconciliation, Federal Credits and Incentives, Difference (Rate)	0.40%