CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
CONSOLIDATED STATEMENTS OF OPERATIONS
Net revenues	$ 110,206	$ 103,112	$ 199,899	$ 196,467
Cost of sales	98,754	93,324	181,437	176,192
Gross profit	11,452	9,788	18,462	20,275
Selling, general and administrative expense	12,284	10,541	23,054	20,853
Research and technical expense	965	991	1,853	1,934
Operating income (loss)	(1,797)	(1,744)	(6,445)	(2,512)
Interest income	(17)	(44)	(35)	(101)
Interest expense	229	236	459	405
Income (loss) before income taxes	(2,009)	(1,936)	(6,869)	(2,816)
Provision for (benefit from) income taxes	59	(46)	17,725	(254)
Net income (loss)	$ (2,068)	$ (1,890)	$ (24,594)	$ (2,562)
Net income (loss) per share:
Basic (in dollars per share)	$ (0.17)	$ (0.15)	$ (1.99)	$ (0.20)
Diluted (in dollars per share)	$ (0.17)	$ (0.15)	$ (1.99)	$ (0.20)
Weighted Average Common Shares Outstanding
Weighted average common shares outstanding - Basic	12,422,485	12,400,522	12,416,627	12,391,264
Weighted average common shares outstanding - Diluted	12,422,485	12,400,522	12,416,627	12,391,264
Dividend declared per common share (in dollars per share)	$ 0.22	$ 0.22	$ 0.44	$ 0.44