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Income Tax Expense (Narrative) (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2012
Income Tax Expense [Line Items] |  |  |
Accumulated unremitted earnings of foreign subsidiaries | $ 32,600,000 |  |
Accumulated unremitted earnings of foreign subsidiaries in cash | 27,000,000 |  |
Income taxes due if foreign entities' earnings were distributed | 4,700,000 |  |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 500,000 |  |
Reduction in the amount of unrecognized tax benefits in the next twelve months | 100,000 |  |
Unrecognized Tax Benefits, Interest on Income Taxes Accrued | 0 | 100,000 | 100,000
Capital loss carryforward, valuation allowance | 400,000 | 400,000 |
Operating Loss Carryforwards, Valuation Allowance | 300,000 | 400,000 |
Net operating loss carryforward — foreign | 4,702,000 | 3,955,000 |
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration | 16,400,000 |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration | 1,800,000 |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | 300,000 |  |
Deferred Tax Assets, Tax Credit Carryforwards, Research | 1,300,000 |  |
State Research And Other Credit CarryForwards With Expiration Date | 900,000 |  |
State Research And Other Credit Carry Forwards Without Expiration Date | 400,000 |  |
Deferred Tax Assets, Valuation Allowance (Less) | (4,297,000) | (3,780,000) |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | 500,000 | 2,800,000 |
Foreign Valuation Allowance [Member] |  |  |
Income Tax Expense [Line Items] |  |  |
Operating Loss Carryforwards, Valuation Allowance | 3,600,000 | 2,800,000 |
Brazil, Germany, India, Japan and the United Kingdom [Member] |  |  |
Income Tax Expense [Line Items] |  |  |
Net operating loss carryforward — foreign | $ 18,200,000 |  |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Amount of interest expense accrued for an underpayment of income taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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