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Note 2 - Income Per Share (Tables) | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
(in thousands except per share data) |  | Three Months ended September 30, |  |  | Nine Months ended September 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 1,973 |  |  | $ | 1,002 |  |  | $ | 1,905 |  |  | $ | 4,612 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per share – weighted-average shares |  |  | 14,864 |  |  |  | 14,757 |  |  |  | 14,827 |  |  |  | 14,737 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equivalent shares issuable upon conversion of unvested restricted stock |  |  | 179 |  |  |  | 50 |  |  |  | 196 |  |  |  | 36 |
Equivalent shares issuable upon conversion of unvested employee stock options |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Denominator for diluted earnings per share – adjusted weighted-average shares and assumed conversions |  |  | 15,043 |  |  |  | 14,807 |  |  |  | 15,023 |  |  |  | 14,773 |
Basic income per share: |  | $ | 0.13 |  |  | $ | 0.07 |  |  | $ | 0.13 |  |  | $ | 0.31 |
Diluted income per share: |  | $ | 0.13 |  |  | $ | 0.07 |  |  | $ | 0.13 |  |  | $ | 0.31 |

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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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