CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
CONSOLIDATED STATEMENTS OF OPERATIONS
Net revenues	$ 395,209	$ 406,359	$ 487,635
Cost of sales	365,499	358,779	393,971
Gross profit	29,710	47,580	93,664
Selling, general and administrative expense	42,393	39,684	42,572
Research and technical expense	3,855	3,698	3,598
Operating income (loss)	(16,538)	4,198	47,494
Interest income	(186)	(108)	(94)
Interest expense	865	555	412
Income (loss) before income taxes	(17,217)	3,751	47,176
Provision for (benefit from) income taxes	(7,027)	(1,269)	16,690
Net income (loss)	$ (10,190)	$ 5,020	$ 30,486
Net income (loss) per share:
Basic (in dollars per share)	$ (0.83)	$ 0.40	$ 2.45
Diluted (in dollars per share)	$ (0.83)	$ 0.40	$ 2.45
Weighted Average Common Shares Outstanding
Weighted average common shares outstanding - Basic	12,397,099	12,361,483	12,331,805
Weighted average common shares outstanding - Diluted	12,397,099	12,366,197	12,344,209
Dividend declared per common share (in dollars per share)	$ 0.88	$ 0.88	$ 0.88