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CONSOLIDATED STATEMENTS OF OPERATIONS AND OTHER COMPREHENSIVE INCOME - USD ($) shares in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Revenue |  |  |
Software | $ 29,647,000 | $ 22,586,000 | $ 17,870,000
SaaS, maintenance, and consulting | 15,743,000 | 12,115,000 | 7,497,000
Total revenue | 45,390,000 | 34,701,000 | 25,367,000
Operating costs and expenses |  |  |
Cost of revenue-software | 1,112,000 | 953,000 | 992,000
Cost of revenue-SaaS, maintenance, and consulting | 2,929,000 | 2,442,000 | 1,479,000
Selling and marketing | 14,484,000 | 10,937,000 | 6,458,000
Research and development | 10,430,000 | 7,794,000 | 5,577,000
General and administrative | 11,310,000 | 8,575,000 | 7,601,000
Acquisition-related costs and expenses | 2,356,000 | 2,176,000 | 1,368,000
Total operating costs and expenses | 42,621,000 | 32,877,000 | 23,475,000
Operating income | 2,769,000 | 1,824,000 | 1,892,000
Other income, net | 402,000 | 134,000 | 91,000
Income before income taxes | 3,171,000 | 1,958,000 | 1,983,000
Income tax benefit | 10,921,000 | 1,000 | 543,000
Net income | $ 14,092,000 | $ 1,959,000 | $ 2,526,000
Net income per share—basic (in dollars per share) | $ 0.43 | $ 0.06 | $ 0.08
Net income per share—diluted (in dollars per share) | $ 0.40 | $ 0.06 | $ 0.08
Shares used in calculating net income per share—basic | 33,083 | 31,587 | 30,790
Shares used in calculating net income per share—diluted | 35,537 | 33,819 | 31,480
Other comprehensive income: |  |  |
Net income | $ 14,092,000 | $ 1,959,000 | $ 2,526,000
Foreign currency translation adjustment | 208,000 | (46,000) | 0
Unrealized gain (loss) on investments | (19,000) | 7,000 | 5,000
Other comprehensive income | $ 14,281,000 | $ 1,920,000 | $ 2,531,000

X
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e557-108580 + Details
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- Definition Total costs of sales and operating expenses for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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