Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Cash Flows from Operating Activities:
Net Loss	$ (7,236)	$ (3,277)	$ (5,959)
Adjustments to Reconcile Net Loss to Net Cash Provided by Operating Activities:
Depreciation and amortization	15,216	16,445	16,166
Non-cash interest expense	845	572	632
Share-based compensation	304	780	767
Deferred income taxes	8,605	(565)	(2,405)
Loss on sale of assets	16	12	76
Changes in operating assets and liabilities:
Accounts receivable, net	5,489	(7,834)	(14,437)
Inventories	(2,956)	270	2,974
Prepaid expenses and other current assets	(1,736)	281	1,620
Accounts payable	4,641	1,434	(3,474)
Income taxes	2,509	(635)	(266)
Accrued liabilities	(2,205)	2,775	(359)
Accrued interest	14	(75)
Employee related liabilities	1,935	(490)	(461)
Deferred revenues and customer deposits	(5,992)	11,932	2,195
Environmental remediation reserves	2,303	(2,820)	12,412
Pension obligations, net	(350)	1,819	1,346
Other	(659)	151	315
Net Cash Provided by Operating Activities	20,743	20,775	11,142
Cash Flows from Investing Activities:
Capital expenditures	(13,151)	(13,362)	(9,458)
Acquisition of business			(6,725)
Other investing activities		10
Net Cash Used in Investing Activities	(13,151)	(13,352)	(16,183)
Cash Flows from Financing Activities:
Payments of long-term debt	(70)	(5,064)	(348)
Debt issuance costs	(878)
Issuance of common stock	48	11	32
Net Cash Used by Financing Activities	(900)	(5,053)	(316)
Effect of Changes in Currency Exchange Rates on Cash	26	(66)	145
Net Change in Cash and Cash Equivalents	6,718	2,304	(5,212)
Cash and Cash Equivalents, Beginning of Year	23,985	21,681	26,893
Cash and Cash Equivalents, End of Year	30,703	23,985	21,681
Cash Paid (Refunded) For:
Interest	9,662	10,159	10,089
Income taxes	(2,928)	(537)	(439)
Non-Cash Investing and Financing Transactions:
Capital leases originated		98
Additions to Property, Plant and Equipment not yet paid	$ 317	$ 624	$ 300