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Note 2 - Loss Per Share (Tables) | 6 Months Ended
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Jun. 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 June 30, |  |  | Six Months ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | 1,891 |  |  | $ | 4,251 |  |  | $ | (68 | ) |  | $ | 3,611 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per share – weighted-average shares |  |  | 14,852 |  |  |  | 14,732 |  |  |  | 14,809 |  |  |  | 14,727 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equivalent shares issuable upon conversion of unvested restricted stock |  |  | 200 |  |  |  | 55 |  |  |  | - |  |  |  | 69 |
Equivalent shares issuable upon conversion of unvested employee stock options |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Denominator for diluted earnings per share – adjusted weighted-average shares and assumed conversions |  |  | 15,052 |  |  |  | 14,787 |  |  |  | 14,809 |  |  |  | 14,796 |
Basic income (loss) per share: |  | $ | 0.13 |  |  | $ | 0.29 |  |  | $ | (0.00 | ) |  | $ | 0.25 |
Diluted income (loss) per share: |  | $ | 0.13 |  |  | $ | 0.29 |  |  | $ | (0.00 | ) |  | $ | 0.24 |

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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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