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EARNINGS PER SHARE (Tables) | 3 Months Ended
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Mar. 31, 2023
EARNINGS PER SHARE |
Schedule of earnings per common share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended March 31,
​ | ​ | 2023 |  | 2022
​ | ​ | (In Thousands, Except Per Share Data)
Basic: | ​ | ​ | ​ | ​ | ​ | ​
Average common shares outstanding | ​ |  | 12,201 | ​ |  | 12,971
Net income |  | $ | 20,456 |  | $ | 16,987
Per common share amount |  | $ | 1.68 |  | $ | 1.31
​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted: | ​ | ​ | ​ | ​ | ​ | ​
Average common shares outstanding | ​ | ​ | 12,201 | ​ | ​ | 12,971
Net effect of dilutive stock options – based on the treasury stock method using average market price | ​ | ​ | 70 | ​ | ​ | 117
Diluted common shares | ​ | ​ | 12,271 | ​ | ​ | 13,088
Net income |  | $ | 20,456 |  | $ | 16,987
Per common share amount |  | $ | 1.67 |  | $ | 1.30
​

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + 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 https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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