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Note 6 - Income (Loss) Per Share | 12 Months Ended
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Dec. 31, 2015
Notes to Financial Statements |
Earnings Per Share [Text Block] | NOTE 6 INCOME (LOSS) PER SHARE The following table reconciles the income (loss) and average share amounts used to compute both basic and diluted income (loss) per share:
|  | Twelve Months Ended |
|  | December 31, |
|  | (Unaudited) |
(Amounts in Thousands, Except for Per Share Amounts) |  | 2015 |  |  | 2014 |
Net income (loss) attributable to Perma-Fix Environmental Services, Inc., common stockholders: |  |  |  |  |  |  |  |
Income (loss) from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders |  | $ | 814 |  |  | $ | (2,913 | )
Income (loss) from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders |  |  | (1,864 | ) |  |  | 1,688 |
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders |  | $ | (1,050 | ) |  | $ | (1,225 | )
Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders |  | $ | (.09 | ) |  | $ | (.11 | )
Diluted loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders |  | $ | (.09 | ) |  | $ | (.11 | )
Weighted average shares outstanding: |  |  |  |  |  |  |  |
Basic weighted average shares outstanding |  |  | 11,516 |  |  |  | 11,443 |
Add: dilutive effect of stock options |  |  | 6 |  |  |  | — |
Add: dilutive effect of warrants |  |  | 30 |  |  |  | — |
Diluted weighted average shares outstanding |  |  | 11,552 |  |  |  | 11,443 |
Potential shares excluded from above weighted average share calcualtions due to their anti-dilutive effect include: |  |  |  |  |  |  |  |
Stock options |  |  | 183 |  |  |  | 201 |

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