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Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Jun. 30, 2017 | Mar. 31, 2018 | Mar. 31, 2017
Numerator for basic and diluted earnings per share: |  |  |  |
Net income |  |  | $ 6,653 | $ 2,886
Less net income attributable to non-controlling interests |  |  | (802) | (21)
Less earnings allocated to unvested restricted stock | [1] |  | (293) | (269)
Net income available for common stockholders: basic and diluted |  |  | $ 5,558 | $ 2,596
Denominator for basic earnings per share: |  |  |  |
Weighted average number of common shares |  |  | 18,396,000 | 17,751,000
Effect of dilutive securities: |  |  |  |
RSUs |  |  | 38,000 | 114,000
Denominator for diluted earnings per share: weighted average number of shares |  |  | 18,434,000 | 17,865
Earnings per common share, basic |  |  | $ 0.30 | $ 0.15
Earnings per common share, diluted |  |  | $ 0.30 | $ 0.15
Net income attributable to One Liberty Properties, Inc. common stockholders, net of non-controlling interests |  |  | $ 5,851 | $ 2,865
2009 Incentive Plan |  |  |  |
Number of underlying shares |  |  | 200,000 |
Effect of dilutive securities: |  |  |  |
RSUs |  | 113,584 |  | 114,000
2016 Incentive Plan |  |  |  |
Number of underlying shares |  |  | 76,250 |
Number of shares included in diluted weighted average number of shares pursuant to return on capital performance metric |  |  | 37,612 |
Number of shares not included in diluted weighted average number of shares pursuant to return on capital performance metric |  |  | 513 |
Number of shares not included in diluted weighted average number of shares pursuant to stockholder return metric |  |  | 38,125 |
Effect of dilutive securities: |  |  |  |
RSUs |  |  | 37,612 |
[1] | Represents an allocation of distributed earnings to unvested restricted stock which, as participating securities, are entitled to receive dividends

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