Earnings Per Share (Narratives) (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended				6 Months Ended		12 Months Ended
	Nov. 20, 2023	Oct. 22, 2023	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Number Diluted Shares Outstanding Adjustment			276,000		129,000		268,000	152,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Increases (Decreases) in Period							18,000
Common Stock, Dividends, Per Share, Declared			$ 0.07		$ 0.07		$ 0.07	$ 0.07
Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares							168,000	179,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period			9,556,000	8,485	9,531	18,907,000			133,000
Average basic shares outstanding			28,725,000		28,619,000		28,694,000	28,581,000
Treasury Stock, Value			$ 1,001				$ 1,001		$ 1,001
Treasury Stock, Common, Shares			31,000				31,000
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							748,000	718,000
Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Dividends, Per Share, Declared		$ 0.07
Dividends	$ 2,015