Consolidated Statements Of Income And Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Consolidated Statements Of Income And Comprehensive Income [Abstract]
Net sales	$ 100,108	$ 93,137	$ 194,711	$ 188,821
Cost of goods sold	78,158	77,299	154,351	157,634
Gross profit	21,950	15,838	40,360	31,187
Selling, general and administrative expenses	17,366	14,864	33,858	29,438
Environmental remediation		(2,788)		(2,788)
Other expense				347
Operating income	4,584	3,762	6,502	4,190
Interest expense	489	316	1,059	637
Other (income) expense		(1)		1
Income before income taxes	4,095	3,447	5,443	3,552
Income tax provision	1,044	594	1,640	410
Net income and comprehensive income	$ 3,051	$ 2,853	$ 3,803	$ 3,142
Weighted average number of common shares outstanding:
Basic	5,184	5,259	5,183	5,285
Diluted	5,324	5,339	5,360	5,436
Earnings per share of common stock:
Basic	$ 0.59	$ 0.54	$ 0.73	$ 0.59
Diluted	$ 0.57	$ 0.53	$ 0.71	$ 0.58