Note 15 - Income Taxes (Details Textual)	9 Months Ended
	Dec. 26, 2020	Dec. 28, 2019
Effective Income Tax Rate Reconciliation, Percent, Total	20.90%	23.70%
Effective Income Tax Rate Continuing Operations Change	(3.20%)
Effective Income Tax Rate Reconciliation, Tax Law Change, Percent	(0.50%)
Effective Income Tax Rate Reconciliation, Creation of Federal Tax Credits, Percentage	0.70%
Effective Income Tax Rate Reconciliation, State Tax Credits and Incentives, Percentage	0.50%