CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2011
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Revenues	$ 674,772		$ 717,194	$ 562,397
Cost of goods sold	527,936		577,256	462,467
Gross profit	146,836		139,938	99,930
Selling, general and administrative expenses	83,539		81,295	77,538
Research and development expenses	8,521		7,652	7,520
Amortization of intangible assets	1,659		2,599	4,752
Restructuring and relocation costs	3,927
Impairments				7,158
Operating income	49,190		48,392	2,962
Gain on sale of investment				(1,229)
Gain on settlement	(1,709)
Interest expense	202		272	408
Interest income	(35)		(114)	(214)
Income before income taxes	50,732		48,234	3,997
Income tax provision	8,656		18,577	6,712
Net income (loss)	$ 42,076		$ 29,657	$ (2,715)
Earnings (loss) per share:
Basic	$ 3.52	[1]	$ 2.50	$ (0.23)
Diluted	$ 3.51	[1]	$ 2.49	$ (0.23)
Weighted average shares:
Basic	11,948		11,850	11,735
Diluted	11,994		11,925	11,735

[1] The increase in earnings per share for the fourth quarter of Fiscal 2013 was primarily driven by the release of our Canadian valuation allowance. For an explanation of the effective tax rate in Fiscal 2013, see Note H.