Note 11 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Thousands, $ in Thousands	6 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Mar. 31, 2022
Treasury Stock, Shares, Total (in shares)	4,529,274
Treasury Stock, Value, Total	$ 165,871	$ 108,507	$ 128,879
Common Class A [Member]
Treasury Stock, Shares, Acquired (in shares)	689,926	342,472
Treasury Stock, Value, Acquired, Cost Method	$ 37,000	$ 17,300
Convertible Preferred Stock [Member]
Preferred Stock, Dividends Per Share, Declared (in dollars per share)	$ 0