| **Acquisitions Acquisitions (Tables)**                                                                 | 3 Months Ended                                                                                                                                                                                                                                                                                                     |
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| **Business Combinations [Abstract]**                                                                   |                                                                                                                                                                                                                                                                                                               |
| Schedule of Business Acquisitions, by Acquisition [Table Text Block]                                   | The following is a summary of the fair values of the assets acquired and liabilities assumed from the acquisition:(In thousands) Current assets$327Property and equipment88Goodwill3,444Developed technology 605Total assets acquired4,464Total liabilities assumed (all current)914Net assets acquired$3,550 |
| Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] | The following is a summary of the intangible asset acquired and the weighted-average useful life over which it will be amortized.   Weighted-average Purchased assets useful life    Developed technology $605 5 years                                           |

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| - Definition
Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table  does not include leveraged buyouts.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1486-128463
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| - Definition
Tabular disclosure of finite-lived intangible assets acquired as part of a business combination or through an asset purchase, by major class and in total, including the value of the asset acquired, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275
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