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Note 2 - Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Weighted average common shares outstanding |  |  | 2,101,490 |  |  |  | 1,872,582 |  |  |  | 1,764,743 |
Average treasury stock shares |  |  | (189,530 | ) |  |  | (189,530 | ) |  |  | (189,530 | )
Weighted average common shares and common stock equivalents used to calculate basic earnings per share |  |  | 1,911,960 |  |  |  | 1,683,052 |  |  |  | 1,575,213 |
Additional common stock equivalents used to calculate diluted earnings per share |  |  | 4,972 |  |  |  | - |  |  |  | 608 |
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share |  |  | 1,916,932 |  |  |  | 1,683,052 |  |  |  | 1,575,821 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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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