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Note 12 - Net Income (Loss) Per-share (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Years Ended December 31 , |
|  | 201 7 |  |  | 201 6 |
Basic net income (loss) per share : |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |
Net income (loss) |  | $ | 766 |  |  | $ | (1,023 | )
Denominator: |  |  |  |  |  |  |  |
Weighted-average shares of common stock outstanding |  |  | 15,505 |  |  |  | 15,405 |
Basic net income (loss) per share |  | $ | 0.05 |  |  | $ | (0.07 | )
Diluted net income (loss) per share : |  |  |  |  |  |  |  |
Numerator : |  |  |  |  |  |  |  |
Net income (loss) |  | $ | 766 |  |  | $ | (1,023 | )
Plus interest expense on convertible debt |  |  | - |  |  |  | - |
|  | $ | 766 |  |  | $ | (1,023 | )
Denominator: |  |  |  |  |  |  |  |
Weighted-average shares of common stock outstanding |  |  | 15,505 |  |  |  | 15,405 |
Dilutive options and warrants outstanding |  |  | 1,156 |  |  |  | - |
Effect of conversion of convertible notes |  |  | 3 |  |  |  | - |
Number of shares used in diluted per-share computation |  |  | 16,664 |  |  |  | 15,405 |
Diluted net income (loss) per share |  | $ | 0.05 |  |  | $ | (0.07 | )

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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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