Quarterly Financial Information - Unaudited (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Quarterly Financial Information - Unaudited [Abstract]
Net sales	$ 105,819	$ 99,052	$ 93,137	$ 95,684	$ 124,517	$ 140,408	$ 141,668	$ 137,689	$ 393,692	$ 544,282	$ 478,925
Gross margin	21,115	18,645	15,838	15,349	17,672	22,071	9,527	23,410	70,947	72,680	96,730
Operating income (loss)	4,236	2,116	3,762	428	3,566	5,814	(8,636)	5,873	10,542	6,617	31,200
Net income (loss)	$ 10,161	$ 1,475	$ 2,853	$ 289	$ (271)	$ 5,316	$ (7,545)	$ 4,353	$ 14,778	$ 1,853	$ 23,048
Earnings (loss) per share:
Basic	$ 1.97	$ 0.28	$ 0.54	$ 0.05	$ (0.05)	$ 0.84	$ (1.13)	$ 0.64	$ 2.83	$ 0.29	$ 3.20
Diluted	$ 1.91	$ 0.28	$ 0.53	$ 0.05	$ (0.05)	$ 0.82	$ (1.13)	$ 0.61	$ 2.74	$ 0.28	$ 3.09
Insurance proceeds received related to settlement of environmental remediation liability			$ 2,800
Valuation allowance					$ 9,838					$ 9,838