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EARNINGS PER SHARE (Computation of Basic and Diluted Earnings per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Basic |  |  |  |
Net income per consolidated statements of income | $ 16,215 | $ 10,783 | $ 41,668 | $ 27,690
Less: Earnings allocated to participating securities | (508) | (89) | (568) | (255)
Net income available to common stockholders | $ 15,707 | $ 10,694 | $ 41,100 | $ 27,435
Weighted average common shares outstanding including participating securities | 8,897,910 | 8,291,068 | 8,518,639 | 8,296,701
Less: Weighted average participating securities | (278,937) | (68,198) | (116,045) | (76,499)
Weighted average common shares outstanding | 8,618,973 | 8,222,870 | 8,402,594 | 8,220,202
Basic earnings per common share (in dollars per share) | $ 1.82 | $ 1.30 | $ 4.89 | $ 3.34
Diluted |  |  |  |
Net income allocated to common shareholders | $ 15,707 | $ 10,694 | $ 41,100 | $ 27,435
Weighted average common shares outstanding for basic earnings per common share | 8,618,973 | 8,222,870 | 8,402,594 | 8,220,202
Average shares and dilutive potential common shares | 8,893,104 | 8,393,211 | 8,636,397 | 8,392,055
Diluted earnings per common share (in dollars per share) | $ 1.77 | $ 1.27 | $ 4.76 | $ 3.27
Stock Option |  |  |  |
Diluted |  |  |  |
Add: Dilutive effects of assumed exercise of stock options | 173,909 | 92,269 | 161,932 | 103,737
Performance-Based Restricted Stock Units (PRSUs) |  |  |  |
Diluted |  |  |  |
Dilutive effects of assumed vesting units | 53,571 | 78,072 | 41,932 | 68,116
Restricted stock |  |  |  |
Calculations of basic and diluted earnings per share |  |  |  |
Number of antidilutive shares not considered in computing diluted earnings per share | 188,906 |  | 188,906 |
Diluted |  |  |  |
Dilutive effects of assumed vesting units | 46,651 |  | 29,939 |

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- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 + Details
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1505-109256 + Details
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- Definition This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1448-109256 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e2646-109256 + Details
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