CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ 18,100us-gaap_NetIncomeLoss	$ (4,715)us-gaap_NetIncomeLoss
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	8,846us-gaap_Depreciation	7,439us-gaap_Depreciation
Amortization	241us-gaap_AmortizationOfIntangibleAssets	208us-gaap_AmortizationOfIntangibleAssets
Pension and post-retirement expense - U.S. and U.K.	6,420	5,223
Stock compensation expense	1,031us-gaap_ShareBasedCompensation	1,044us-gaap_ShareBasedCompensation
Excess tax benefit from option exercises and restricted stock vesting		(253)
Deferred revenue	(1,250)	(1,250)
Deferred income taxes	(900)us-gaap_DeferredIncomeTaxExpenseBenefit	(8,003)us-gaap_DeferredIncomeTaxExpenseBenefit
Loss on disposition of property	142us-gaap_GainLossOnDispositionOfAssets	29us-gaap_GainLossOnDispositionOfAssets
Change in assets and liabilities:
Accounts receivable	(17,769)	4,272
Inventories	(3,042)us-gaap_IncreaseDecreaseInInventories	(4,267)us-gaap_IncreaseDecreaseInInventories
Other assets	(685)	(1,007)
Accounts payable and accrued expenses	2,516	22,568
Income taxes	4,451	5,133
Accrued pension and postretirement benefits	(2,605)	(3,817)
Net cash provided by operating activities	15,496	22,604
Cash flows from investing activities:
Additions to property, plant and equipment	(8,065)	(24,285)
Acquisition of Leveltek - LaPorte assets	(14,600)
Net cash used in investing activities	(22,665)	(24,285)
Cash flows from financing activities:
Dividends paid	(5,475)us-gaap_PaymentsOfDividendsCommonStock	(5,445)us-gaap_PaymentsOfDividendsCommonStock
Proceeds from exercise of stock options		813
Payment for purchase of treasury stock	(251)	(335)
Excess tax benefit from option exercises and restricted stock vesting		253
Net cash used in financing activities	(5,726)	(4,714)
Effect of exchange rates on cash	(747)	152
Increase (decrease) in cash and cash equivalents	(13,642)	(6,243)
Cash and cash equivalents:
Cash and cash equivalents, beginning of period	45,871	68,326
Cash and cash equivalents, end of period	32,229	62,083
Cash paid during period for:
Interest (net of capitalized interest)	0us-gaap_InterestPaidNet	3us-gaap_InterestPaidNet
Income taxes paid (net of refunds)	5,219us-gaap_IncomeTaxesPaidNet	567us-gaap_IncomeTaxesPaidNet
Capital expenditures incurred but not yet paid	$ 833	$ 1,129

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The amount of pension and other (such as medical, dental and life insurance) postretirement benefit costs recognized during the period for (1) defined benefit plans (periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss) on assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments) and for (2) defined contribution plans (to the extent that a plan's defined contributions to an individual's account are to be made for periods in which that individual renders services, the net cost for a period is the contribution called for in that period; if a plan calls for contributions for periods after an individual retires or terminates, the estimated cost is accrued during the employee's service period).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 230

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-Section 45

-Paragraph 28

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-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

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-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Subparagraph (a)

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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