Nature Of Operations And Significant Accounting Policies (Reconciliation Of Equity In Unconsolidated Affiliates) (Details) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Accounting Policies [Abstract]
Equity in pretax earnings reported in the consolidated statements of income	[1]	$ 6,095	$ 2,985	$ 4,211
Less: Equity in income taxes		(1,481)	180	(1,390)
Equity in net income		4,614	3,165	2,821
Less: Dividends received on investments	[2]	4,285	2,869	3,922
Equity in net income, net of dividends, reported in the consolidated statements of cash flows		$ 329	$ 296	$ (1,101)

[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.