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Note 9 - Net Income (Loss) Per Common Share (Tables) | 9 Months Ended
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May 31, 2021
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended May 31, |  |  | Nine Months Ended May 31, |
Numerator: |  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Net income (loss) attributable to NTIC |  | $ | 2,053,916 |  |  | $ | (965,221 | ) |  | $ | 4,628,890 |  |  | $ | 427,163 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic – weighted shares outstanding |  |  | 9,109,861 |  |  |  | 9,099,990 |  |  |  | 9,107,243 |  |  |  | 9,096,981 |
Weighted shares assumed upon exercise of stock options |  |  | 862,139 |  |  |  | — |  |  |  | 721,809 |  |  |  | 215,933 |
Diluted – weighted shares outstanding |  |  | 9,972,000 |  |  |  | 9,099,990 |  |  |  | 9,829,052 |  |  |  | 9,312,914 |
Basic net income (loss) per share: |  | $ | 0.23 |  |  | $ | (0.11 | ) |  | $ | 0.51 |  |  | $ | 0.05 |
Diluted net income (loss) per share: |  | $ | 0.21 |  |  | $ | (0.11 | ) |  | $ | 0.47 |  |  | $ | 0.05 |

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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