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Note 12 - Net Income (Loss) Per-share | 12 Months Ended
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Dec. 31, 2017
Notes to Financial Statements |
Earnings Per Share [Text Block] | Note 12 – Net Income (Loss) Per-Share Basic and diluted income (loss) per share are based on the weighted average number of shares of common stock and potential common stock outstanding during the period. Potential common stock, for the purpose of determining diluted income per share, includes the effects of dilutive unvested restricted stock, options to purchase common stock and convertible securities. The effect of such potential common stock is computed using the treasury stock method or the if-converted method, as applicable. The following table presents a reconciliation of the numerators and denominators of the basic and diluted income (loss) per share computations for income (loss) from continuing operations. In the table below, income (loss) represents the numerator and shares represent the denominator (in thousands except per share amounts):
|  | 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 | )
For the years ended December 31, 2017 and 2016, potentially dilutive shares of 324,000 and 3,539,000 were excluded from the calculation of dilutive shares because their effect would have been anti-dilutive in those periods.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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