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EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
EARNINGS PER COMMON SHARE |  |  |  |  |  |  |  |  |  |  |
Number of shares awarded under Pay-for-Performance program included in diluted weighted average number of shares |  |  |  |  |  |  |  |  | 114,000 | 108,000 | 100,000
Underlying number of shares awarded under Pay-for-Performance program included in calculation of diluted weighted average number of shares |  |  |  |  |  |  |  |  | 200,000 | 200,000 | 200,000
Number of shares awarded under Pay-for-Performance program included in diluted weighted average number of shares |  |  |  |  |  |  |  |  | 100,000 | 100,000 | 100,000
Number of shares awarded under Pay-for-Performance program included in diluted weighted average number of shares pursuant to capital performance metric |  |  |  |  |  |  |  |  | 14,000 | 8,000 | 0
Outstanding options at the end of the period (in shares) | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0
Numerator for basic and diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  |  |  |  |  |  |  | $ 24,481 | $ 21,907 | $ 22,197
Less net income attributable to non-controlling interests |  |  |  |  |  |  |  |  | (59) | (1,390) | (94)
Less earnings allocated to unvested restricted stock |  |  |  |  |  |  |  |  | (999) | (852) | (722)
Income from continuing operations available for common stockholders |  |  |  |  |  |  |  |  | 23,423 | 19,665 | 21,381
Discontinued operations |  |  |  |  |  |  |  |  |  |  | 13
Net income available for common stockholders, basic |  |  |  |  |  |  |  |  | $ 23,423 | $ 19,665 | $ 21,394
Denominator for basic earnings per share: |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares | 17,255,000 | 16,845,000 | 16,579,000 | 16,388,000 | 16,204,000 | 16,014,000 | 15,883,000 | 15,776,000 | 16,768,000 | 15,971,000 | 15,563,000
Effect of diluted securities: |  |  |  |  |  |  |  |  |  |  |
Restricted stock units awarded under Pay-for-Performance program (in shares) |  |  |  |  |  |  |  |  | 114,000 | 108,000 | 100,000
Denominator for diluted earnings per share: weighted average shares |  |  |  |  |  |  |  |  | 16,882,000 | 16,079,000 | 15,663,000
Earnings per common share, basic (in dollars per share) | $ 0.24 | $ 0.24 | $ 0.72 | $ 0.19 | $ 0.31 | $ 0.22 | $ 0.22 | $ 0.48 | $ 1.40 | $ 1.23 | $ 1.37
Earnings per common share, diluted (in dollars per share) | $ 0.24 | $ 0.24 | $ 0.72 | $ 0.18 | $ 0.31 | $ 0.22 | $ 0.22 | $ 0.48 | $ 1.39 | $ 1.22 | $ 1.37
Net income attributable to One Liberty Properties, Inc. common stockholders, net of non-controlling interests: |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  |  |  |  |  |  |  | $ 24,422 | $ 20,517 | $ 22,103
Income from discontinued operations |  |  |  |  |  |  |  |  |  |  | 13
Net income attributable to One Liberty Properties, Inc. | $ 4,395 | $ 4,299 | $ 12,441 | $ 3,287 | $ 5,191 | $ 3,788 | $ 3,682 | $ 7,856 | $ 24,422 | $ 20,517 | $ 22,116

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