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Discontinued Operations (Amortization, Depreciation, and Purchase of PPE) (Details) - Etherios, Inc. - Discontinued Operations, Disposed of by Sale - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2016 | Sep. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Amortization of identifiable intangible assets | $ 30 | $ 483
Depreciation of property, equipment and improvements | 0 | 29
Purchases of property, equipment, improvements and certain other intangible assets | $ 0 | $ (11)

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- Definition Amount of capital expenditure attributable to discontinued operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 + Details
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