Nature Of Operations And Significant Accounting Policies (Reconciliation Of Equity In Unconsolidated Affiliates) (Details) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Accounting Policies [Abstract]
Equity in pretax earnings reported in the consolidated statements of income	[1]	$ 2,383	$ 6,095	$ 2,985
Less: Equity in income taxes		(781)	(1,481)	180
Equity in net income		1,602	4,614	3,165
Less: Dividends received on investments	[2]	5,612	4,285	2,869
Equity in net income, net of dividends, reported in the consolidated statements of cash flows		$ (4,010)	$ 329	$ 296

[1] Equity in pretax earnings of unconsolidated affiliates is included in reportable segment operating income, but is reported below consolidated operating income and excluded from that total in the consolidated statements of income.

[2] In accordance with the applicable accounting guidance, dividends received from unconsolidated affiliates accounted for on the equity method that represent a return on capital (i.e., a return of earnings on a cumulative basis) are presented as operating cash flows in the consolidated statements of cash flows.