Consolidated Statements Of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Total Par Value Of Common Shares [Member]	Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]
Balance, beginning at Jun. 30, 2021	$ 167,968	$ 8,133	$ 34,015	$ (31,320)	$ 157,140
Stock options exercised, net	117	7	110
Long-term incentive compensation	51		51
Stock-based compensation	341	50	291
Treasury stock purchases	(35,052)			(35,052)
Cash dividends declared	(3,718)				(3,718)
Net Income (Loss)	1,853				1,853
Balance, ending at Jun. 30, 2022	131,560	8,190	34,467	(66,372)	155,275
Long-term incentive compensation	1,813		1,813
Stock-based compensation	427	102	325
Treasury stock purchases	(3,700)			(3,700)
Cash dividends declared	(3,257)				(3,257)
Net Income (Loss)	14,778				14,778
Balance, ending at Jun. 30, 2023	141,621	8,292	36,605	(70,072)	166,796
Stock options exercised, net	88	3	85
Long-term incentive compensation	3,505		3,505
Stock-based compensation	(510)	112	(622)
Treasury stock purchases	(1,659)			(1,659)
Cash dividends declared	(3,206)				(3,206)
Net Income (Loss)	10,528				10,528
Balance, ending at Jun. 30, 2024	$ 150,367	$ 8,407	$ 39,573	$ (71,731)	$ 174,118