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Restructuring Charges (Details Textual) (USD $) | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2010 Position | Sep. 30, 2012 | Sep. 30, 2011 | Dec. 31, 2010 | Jun. 30, 2010 | Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2010 | Aug. 31, 2011 | Oct. 30, 2010 Position
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring accrual balance |  | $ 100,000 |  |  |  | $ 100,000 |  |  |  |
Summary Of Restructuring Accrual Activity (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Restructuring costs related to SurModics |  |  | 1,000,000 | 600,000 |  | 0 | 1,616,000 | 1,204,000 |  |
Eliminated Work Force | 4.00% |  |  |  |  |  |  |  | 9.00% | 13.00%
Positions eliminated as a result of the organizational change | 11 |  |  |  |  |  |  |  |  | 30
Pre-Tax Restructuring Charges |  |  | 1,000,000 | 600,000 | 1,200,000 |  |  |  |  |
Cash payments for restructuring events |  |  |  |  |  | 700,000 |  |  |  |
Current portion |  | 200,000 |  |  |  | 200,000 |  |  |  |
Payments associated with facility related costs |  |  |  |  |  | 100,000 |  |  |  |
Severance pay and benefit expenses |  |  |  | 600,000 |  |  |  | 800,000 |  |
Restructuring accrual balance fiscal 2010 restructuring event. |  | 200,000 |  |  |  | 200,000 |  |  |  |
Restructuring accrual balance expected to be paid within |  | 15 months |  |  |  | 15 months |  |  |  |
Facility related cost |  |  |  |  |  |  |  | 400,000 |  |
Percentage of eliminated workforce | 5.00% | 10.00% |  | 8.00% |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Long term portion |  | $ 100,000 |  |  |  | $ 100,000 |  |  |  |

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- Definition The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -Paragraph 8-13, 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5-8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 112 -Paragraph 7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140864-122747 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS146-1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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