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Earnings Per Share (Narratives) (Details) - USD ($)		3 Months Ended		6 Months Ended
Earnings Per Share (Narratives) (Details) - USD ($)	Oct. 18, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Number Diluted Shares Outstanding Adjustment		0	295,000	0	300,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Increases (Decreases) in Period				23,000
Common Stock, Dividends, Per Share, Declared	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.06
2016 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares of common stock available for grant		2,500,000		2,500,000
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount				1,149,000
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount			288,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount					70,000
Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends	$ 1,440,000