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Note 6 - EARNINGS PER SHARE (Tables) | 3 Months Ended
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Mar. 31, 2023
EARNINGS PER SHARE |
Schedule of computation of earnings per share on a basic and diluted basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Three months ended | ​
​ | ​ | ​ | March 31, | ​
​ | ​ | ​ | 2023 |  | ​ | 2022 |
​ | ​ | (dollars in thousands, except share data) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 27,157 | ​ | $ | 23,624 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic EPS | ​ | $ | 1.62 | ​ | $ | 1.51 | ​
Diluted EPS | ​ | $ | 1.60 | ​ | $ | 1.49 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding | ​ |  | 16,776,289 | ​ |  | 15,625,112 | ​
Weighted average common shares issuable upon exercise of stock options | ​ | ​ | ​ | ​ | ​ | ​ | ​
and under the employee stock purchase plan* | ​ |  | 165,843 | ​ |  | 227,144 | ​
Weighted average common and common equivalent shares outstanding | ​ |  | 16,942,132 | ​ |  | 15,852,256 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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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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