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Income (Loss) per Common Share (Tables) | 9 Months Ended
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Aug. 31, 2018
Earnings Per Share [Abstract] |
Calculation of Basic and Diluted Net Income (Loss) per Common Share | The following table sets forth the calculation of basic and diluted net income (loss) per common share:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | August 31, 2018 |  |  | August 31, 2017 |  |  | August 31, 2018 |  |  | August 31, 2017 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) |  | $ | 244,984 |  |  | $ | 652,019 |  |  | ($ | 1,745,582 | ) |  | $ | 1,635,882 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares outstanding-basic |  |  | 7,694,662 |  |  |  | 7,100,232 |  |  |  | 7,350,868 |  |  |  | 7,049,782 |
Dilutive common shares issuable upon exercise of stock options |  |  | 681,013 |  |  |  | 694,623 |  |  |  | — |  |  |  | 613,584 |
Weighted-average shares-diluted |  |  | 8,375,675 |  |  |  | 7,794,855 |  |  |  | 7,350,868 |  |  |  | 7,663,366 |
Net income (loss) per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.03 |  |  | $ | 0.09 |  |  | ($ | 0.24 | ) |  | $ | 0.23 |
Diluted |  | $ | 0.03 |  |  | $ | 0.08 |  |  | ($ | 0.24 | ) |  | $ | 0.21 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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