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Discontinued Operations (Tables) | 12 Months Ended
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Sep. 30, 2017
Discontinued Operations and Disposal Groups [Abstract] |
Disposal Groups, Including Discontinued Operations | The following table presents amortization, depreciation and purchases of property, equipment, improvements and certain other intangible assets of the discontinued operations related to Etherios (in thousands):
|  | Fiscal year ended September 30,
|  | 2016 |  | 2015
Amortization of identifiable intangible assets |  | $ | 30 |  |  | $ | 483 |
Depreciation of property, equipment and improvements |  | $ | — |  |  | $ | 29 |
Purchases of property, equipment, improvements and certain other intangible assets |  | $ | — |  |  | $ | (11 | )
Income (loss) from discontinued operations, after income taxes, as presented in the Consolidated Statements of Operations for the twelve months ended September 30, 2016 and 2015 is as follows (in thousands):
| Fiscal year ended September 30,
| 2016 |  | 2015
Service revenue | $ | 891 |  |  | $ | 9,011 |
Cost of service | 713 |  |  | 8,101 |
Gross profit | 178 |  |  | 910 |
Operating expenses: |  |  |
Sales and marketing | 148 |  |  | 1,970 |
Research and development | 103 |  |  | 2,098 |
General and administrative | 43 |  |  | 1,208 |
Restructuring | — |  |  | 106 |
Total operating expenses | 294 |  |  | 5,382 |
Loss from discontinued operations, before income taxes | (116 | ) |  | (4,472 | )
Gain on sale of discontinued operations, before income taxes | 2,870 |  |  | — |
Income (loss) from discontinued operations, before income taxes | 2,754 |  |  | (4,472 | )
Income tax benefit on discontinued operations | (476 | ) |  | (1,627 | )
Income (loss) from discontinued operations, after income taxes | $ | 3,230 |  |  | $ | (2,845 | )

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- Definition Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721533-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721665-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1474-107760 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=84176398&loc=SL51724579-110230 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721675-107760 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721663-107760 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2941-110230 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721659-107760 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721671-107760 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5D -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721677-107760 + Details
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