CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
CONSOLIDATED STATEMENTS OF OPERATIONS
Net revenues	$ 111,563	$ 127,474	$ 220,016	$ 234,543
Cost of sales	92,267	112,791	181,977	208,525
Gross profit	19,296	14,683	38,039	26,018
Selling, general and administrative expense	10,785	10,663	22,292	21,791
Research and technical expense	1,028	859	1,910	1,693
Operating income	7,483	3,161	13,837	2,534
Nonoperating retirement benefit expense	1,700	856	3,400	1,712
Interest income	(10)	(18)	(24)	(38)
Interest expense	296	284	547	525
Income before income taxes	5,497	2,039	9,914	335
Provision for income taxes	1,429	530	2,578	429
Net income (loss)	$ 4,068	$ 1,509	$ 7,336	$ (94)
Net income (loss) per share:
Basic (in dollars per share)	$ 0.32	$ 0.12	$ 0.58	$ (0.01)
Diluted (in dollars per share)	$ 0.32	$ 0.12	$ 0.58	$ (0.01)
Weighted Average Common Shares Outstanding
Weighted average common shares outstanding - Basic	12,473,881	12,448,792	12,466,867	12,439,689
Weighted average common shares outstanding - Diluted	12,504,063	12,600,292	12,496,949	12,439,689
Dividends declared per common share (in dollars per share)	$ 0.22	$ 0.22	$ 0.44	$ 0.44