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Earnings Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Earnings Per Common Share |  |  |  |
Number of shares awarded under Pay-for-Performance program included in diluted weighted average number of shares | 100,000 |  | 100,000 |
Number of shares awarded under Pay-for-Performance program not included in diluted weighted average number of shares | 100,000 | 100,000 | 100,000 | 100,000
Numerator for basic and diluted earnings per share: |  |  |  |
Income from continuing operations | $ 3,106 | $ 2,643 | $ 9,543 | $ 9,061
Less net income attributable to noncontrolling interests | (6) |  | (13) |
Less earnings allocated to unvested shares |  | (115) |  | (345)
Income from continuing operations available for common stockholders | 3,100 | 2,528 | 9,530 | 8,716
Discontinued operations | 15,314 | 122 | 17,856 | 1,578
Net income available for common stockholders, basic | 18,414 | 2,650 | 27,386 | 10,294
Net income available for common stockholders, diluted | 18,414 | 2,650 | 27,386 | 10,294
Denominator for basic earnings per share: |  |  |  |
Weighted average common shares | 14,443,000 | 14,143,000 | 14,370,000 | 13,663,000
Weighted average unvested restricted stock shares | 408,000 |  | 412,000 |
Denominator for basic earnings per share (in shares) | 14,851,000 | 14,143,000 | 14,782,000 | 13,663,000
Effect of diluted securities |  |  |  |
Restricted stock units awarded under Pay-for-Performance program (in shares) | 100,000 |  | 100,000 |
Denominator for diluted earnings per share - weighted average shares | 14,951,000 | 14,143,000 | 14,882,000 | 13,663,000
Earnings per common share, basic (in dollars per share) | $ 1.24 | $ 0.19 | $ 1.85 | $ 0.75
Earnings per common share, diluted (in dollars per share) | $ 1.23 | $ 0.19 | $ 1.84 | $ 0.75
Amounts attributable to One Liberty Properties, Inc. common stockholders, net of noncontrolling interests: |  |  |  |
Income from continuing operations | 3,100 | 2,643 | 9,530 | 9,061
Income from discontinued operations | 15,314 | 122 | 17,856 | 1,578
Net income attributable to One Liberty Properties, Inc. | $ 18,414 | $ 2,765 | $ 27,386 | $ 10,639

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