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Summary of Significant Accounting Policies and Select Balance Sheet Information (Details 5) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Sep. 30, 2011
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Schedule of other assets consist principally of strategic investments |  |
Other assets, net | $ 2,831 | $ 3,303
Investment in OctoPlus N.V. [Member] |  |
Schedule of other assets consist principally of strategic investments |  |
Other assets, net | 718 | 1,190
Investment in Nexeon MedSystems, Inc. [Member] |  |
Schedule of other assets consist principally of strategic investments |  |
Other assets, net | 285 | 285
Investment in ThermopeutiX, Inc. [Member] |  |
Schedule of other assets consist principally of strategic investments |  |
Other assets, net | 1,185 | 1,185
Investment in ViaCyte, Inc. [Member] |  |
Schedule of other assets consist principally of strategic investments |  |
Other assets, net | 559 | 559
Other [Member] |  |
Schedule of other assets consist principally of strategic investments |  |
Other assets, net | $ 84 | $ 84

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- Definition The aggregate carrying amounts, as of the balance sheet date, of assets not separately disclosed in the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 7 + Details
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