Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Years ended March 31,	2021		2020
Continuing Operations	(In thousands, except per share amounts)
Basic
Continuing operations earnings	$	126,100	$	51,188
Deduct preferred stock dividends		23		23
Undistributed earnings		126,077		51,165
Earnings attributable to participating preferred shareholders		493		206
Earnings attributable to common shareholders	$	125,584	$	50,959
Weighted average common shares outstanding		9,088		9,264
Basic earnings from continuing operations per common share	$	13.82	$	5.50
Diluted
Earnings attributable to common shareholders	$	125,584	$	50,959
Add dividends on convertible preferred stock		20		20
Earnings attributable to common stock on a diluted basis	$	125,604	$	50,979
Weighted average common shares outstanding-basic		9,088		9,264
Additional shares to be issued related to the equity compensation plan		3		2
Additional shares to be issued under full conversion of preferred stock		67		67
Total shares for diluted		9,158		9,333
Diluted earnings from continuing operations per share	$	13.72	$	5.46

Years ended March 31,	2021		2020
Discontinued Operations	(In thousands, except per share amounts)
Basic
Discontinued operations earnings	$	-	$	1,147
Deduct preferred stock dividends		-		23
Undistributed earnings		-		1,124
Earnings attributable to participating preferred shareholders		-		5
Earnings attributable to common shareholders	$	-	$	1,119
Weighted average common shares outstanding				9,264
Basic earnings from discontinued operations per common share	$	-	$	0.12
Diluted
Earnings attributable to common shareholders	$	-	$	1,119
Add dividends on convertible preferred stock		-		20
Earnings attributable to common stock on a diluted basis	$	-	$	1,139
Weighted average common shares outstanding-basic		-		9,264
Additional shares to be issued related to the equity compensation plan		-		2
Additional shares to be issued under full conversion of preferred stock		-		67
Total shares for diluted		-		9,333
Diluted earnings from discontinued operations per share	$	-	$	0.12