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Note 9 - Earnings Per Share - Antidilutive Securities Excluded From Computation of Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Total stock awards excluded from diluted EPS (in shares)	822	659	988	656
Assumed Conversion of Convertible Debt [Member]
Total stock awards excluded from diluted EPS (in shares)	608	608	608	608
Stock Awards that were Antidilutive [Member]
Total stock awards excluded from diluted EPS (in shares)	154	43	328	40
Stock Awards Subject to Performance Conditions [Member]
Total stock awards excluded from diluted EPS (in shares)	60	8	52	8

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

+ Details

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