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Nature of Operations and Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Mar. 31, 2018
Accounting Policies [Abstract] |
Potentially Dilutive Common Shares Excluded from Calculation of Net Loss per Share | For the three and six months ended March 31, 2018 and 2017, the following potentially dilutive common shares were excluded from the calculation of net income (loss) per share, as they would have been antidilutive (amounts in thousands):
| Three Months Ended March 31, |  | Six Months Ended March 31,
| 2018 |  | 2017 |  | 2018 |  | 2017
Stock options | 3,047 |  |  | 707 |  |  | 3,047 |  |  | 680 |
RSUs | 2,670 |  |  | 107 |  |  | 2,670 |  |  | 107 |
IDchecker closing shares | — |  |  | 91 |  |  | — |  |  | 88 |
IDchecker earnout shares | — |  |  | 74 |  |  | — |  |  | 72 |
Total potentially dilutive common shares outstanding | 5,717 |  |  | 979 |  |  | 5,717 |  |  | 947 |
Calculation of Basic and Diluted Net Loss Per Share | The calculation of basic and diluted net income (loss) per share is as follows (amounts in thousands, except per share data):
| Three Months Ended March 31, |  | Six Months Ended March 31,
| 2018 |  | 2017 |  | 2018 |  | 2017
Net income (loss) | $ | (1,160 | ) |  | $ | 1,217 |  |  | $ | (6,896 | ) |  | $ | 610 |
Weighted-average shares outstanding—basic | 34,976 |  |  | 32,786 |  |  | 34,587 |  |  | 32,582 |
Common stock equivalents | — |  |  | 2,029 |  |  | — |  |  | 2,236 |
Weighted-average shares outstanding—diluted | 34,976 |  |  | 34,815 |  |  | 34,587 |  |  | 34,818 |
Net income (loss) per share: |  |  |  |  |  |  |
Basic | $ | (0.03 | ) |  | $ | 0.04 |  |  | $ | (0.20 | ) |  | $ | 0.02 |
Diluted | $ | (0.03 | ) |  | $ | 0.03 |  |  | $ | (0.20 | ) |  | $ | 0.02 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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