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Stockholders’ Equity and Stock Compensation (Summary of Performance Stock Options) (Details) - Performance-Based Stock Options [Member]	6 Months Ended
	Sep. 30, 2021 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding	48,417
Options, Granted	0
Options, Exercised	(6,635)
Options Outstanding	41,782
Weighted Average Exercise Price, Options outstanding | $ / shares	$ 46.85
Weighted Average Exercise Price, Exercised | $ / shares	(46.85)
Weighted Average Exercise Price, Options outstanding | $ / shares	$ 46.85

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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