CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
CONSOLIDATED STATEMENTS OF OPERATIONS
Net revenues	$ 152,786	$ 117,056	$ 285,459	$ 216,486
Cost of sales	121,908	93,643	231,543	175,296
Gross profit	30,878	23,413	53,916	41,190
Selling, general and administrative expense	12,702	11,782	23,654	23,144
Research and technical expense	1,047	944	2,020	1,849
Operating income	17,129	10,687	28,242	16,197
Nonoperating retirement benefit expense (income)	(365)	(1,088)	(731)	(2,176)
Interest income	(10)	(6)	(16)	(14)
Interest expense	1,865	514	3,366	814
Income before income taxes	15,639	11,267	25,623	17,573
Provision for income taxes	3,290	2,783	5,535	4,430
Net income	$ 12,349	$ 8,484	$ 20,088	$ 13,143
Net income per share:
Basic (dollars per share)	$ 0.98	$ 0.68	$ 1.59	$ 1.05
Diluted (dollars per share)	$ 0.96	$ 0.67	$ 1.56	$ 1.04
Weighted Average Common Shares Outstanding
Basic (in shares)	12,544,388	12,330,567	12,522,323	12,349,904
Diluted (in shares)	12,786,719	12,474,183	12,765,782	12,530,842
Dividends declared per common share (dollars per share)	$ 0.22	$ 0.22	$ 0.44	$ 0.44