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Earnings Per Share (Narratives) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	134,000	283,000	134,000	428,000
Shares of stock were issued upon the exercising of stock option			166,000
Number of shares of restricted stock vested and were issued					157,000
Common Stock, Dividends, Per Share, Declared	$ 0.05	$ 0.04	$ 0.05	$ 0.04
Dividends	$ 1,164	$ 910	$ 1,164	$ 910
2016 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares of common stock available for grant	2,000,000		2,000,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount			161,000