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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Calculation of Basic Earnings Per Share |
|  | (in thousands of dollars) |  |  | (in thousands of dollars) |
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, 2021 |  |  | June 30, 2020 |  |  | June 30, 2021 |  |  | June 30, 2020 |
Earnings per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 4,983 |  |  | $ | 4,804 |  |  | $ | 9,892 |  |  | $ | 8,909 |
Less: distributed earnings allocated to participating securities |  |  | (14 | ) |  |  | (13 | ) |  |  | (29 | ) |  |  | (26 | )
Less: undistributed earnings allocated to participating securities |  |  | (23 | ) |  |  | (22 | ) |  |  | (46 | ) |  |  | (40 | )
Net earnings available to common shareholders |  | $ | 4,946 |  |  | $ | 4,769 |  |  | $ | 9,817 |  |  | $ | 8,843 |
Weighted average common shares outstanding including participating securities |  |  | 11,191,043 |  |  |  | 11,129,341 |  |  |  | 11,194,011 |  |  |  | 11,132,105 |
Less: average unvested restricted shares |  |  | (84,125 | ) |  |  | (80,062 | ) |  |  | (85,353 | ) |  |  | (82,397 | )
Weighted average common shares outstanding |  |  | 11,106,918 |  |  |  | 11,049,279 |  |  |  | 11,108,658 |  |  |  | 11,049,708 |
Basic and diluted earnings per share |  | $ | 0.44 |  |  | $ | 0.43 |  |  | $ | 0.88 |  |  | $ | 0.80 |

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- Definition Tabular disclosure of the effect of income (loss) on basic earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=120380238&loc=d3e4984-109258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1278-109256 + Details
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