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Note 10 - Earnings Per Share (Tables) | 6 Months Ended
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Mar. 31, 2024
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended March 31, |  |  | Six Months Ended March 31, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Net income |  | $ | 6,443,390 |  |  | $ | 6,341,886 |  |  | $ | 11,463,382 |  |  | $ | 9,598,291 |
Weighted average common shares |  |  | 10,170,595 |  |  |  | 9,911,202 |  |  |  | 10,099,533 |  |  |  | 9,870,259 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options to purchase common stock |  |  | 3,411 |  |  |  | 7,506 |  |  |  | 2,751 |  |  |  | 7,242 |
Diluted average common shares |  |  | 10,174,006 |  |  |  | 9,918,708 |  |  |  | 10,102,284 |  |  |  | 9,877,501 |
Earnings per share of common stock: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.63 |  |  | $ | 0.64 |  |  | $ | 1.14 |  |  | $ | 0.97 |
Diluted |  | $ | 0.63 |  |  | $ | 0.64 |  |  | $ | 1.13 |  |  | $ | 0.97 |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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