Note 11 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Thousands, $ in Thousands	9 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Mar. 31, 2022
Treasury Stock, Shares, Total (in shares)	4,605,419
Treasury Stock, Value, Total	$ 170,088	$ 118,977	$ 128,879
Common Class A [Member]
Treasury Stock, Shares, Acquired (in shares)	766,071	557,311
Treasury Stock, Value, Acquired, Cost Method	$ 41,200	$ 27,800
Convertible Preferred Stock [Member]
Preferred Stock, Dividends Per Share, Declared (in dollars per share)	$ 0