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Note 9 - Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | 2016 |  |  | 2015 |
Weighted average common shares outstanding basic earnings per share |  |  | 6,285,815 |  |  |  | 6,175,254 |
Effect of potential common share issuance: |  |  |  |  |  |  |  |
Stock options |  |  | --- |  |  |  | 108,053 |
Weighted average common shares outstanding |  |  |  |  |  |  |  |
Diluted earnings per share |  |  | 6,285,815 |  |  |  | 6,283,307 |

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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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