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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Calculation of Basic Earnings Per Share |
|  | (in thousands of dollars) |  |  | (in thousands of dollars) |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, 2019 |  |  | September 30, 2018 |  |  | September 30, 2019 |  |  | September 30, 2018 |
Earnings per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 4,275 |  |  | $ | 3,875 |  |  | $ | 13,679 |  |  | $ | 11,756 |
Less: distributed earnings allocated to participating securities |  |  | (14 | ) |  |  | (13 | ) |  |  | (37 | ) |  |  | (38 | )
Less: undistributed earnings allocated to participating securities |  |  | (18 | ) |  |  | (26 | ) |  |  | (63 | ) |  |  | (80 | )
Net earnings available to common shareholders |  | $ | 4,243 |  |  | $ | 3,836 |  |  | $ | 13,579 |  |  | $ | 11,638 |
Weighted average common shares outstanding including participating securities |  |  | 11,121,426 |  |  |  | 9,274,507 |  |  |  | 11,105,993 |  |  |  | 9,268,819 |
Less: average unvested restricted shares |  |  | (79,335 | ) |  |  | (93,242 | ) |  |  | (81,569 | ) |  |  | (92,683 | )
Weighted average common shares outstanding |  |  | 11,042,091 |  |  |  | 9,181,265 |  |  |  | 11,024,424 |  |  |  | 9,176,136 |
Basic earnings and diluted per share |  | $ | 0.38 |  |  | $ | 0.42 |  |  | $ | 1.23 |  |  | $ | 1.27 |

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