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Note 7 - EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2022
Earnings per Share |
Schedule of computation of earnings per share on a basic and diluted basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Three months ended | ​ | Six months ended
​ | ​ | ​ | June 30, | ​ | June 30,
​ | ​ | ​ | 2022 |  | ​ | 2021 |  | ​ | 2022 |  | ​ | 2021
​ | ​ | (dollars in thousands, except share data)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 15,242 | ​ | $ | 22,349 | ​ | $ | 38,866 | ​ | $ | 40,331
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic EPS | ​ | $ | 0.88 | ​ | $ | 1.41 | ​ | $ | 2.36 | ​ | $ | 2.55
Diluted EPS | ​ | $ | 0.87 | ​ | $ | 1.39 | ​ | $ | 2.33 | ​ | $ | 2.52
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding | ​ |  | 17,345,324 | ​ |  | 15,813,932 | ​ |  | 16,485,218 | ​ |  | 15,808,788
Weighted average common shares issuable upon exercise of stock options | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
and under the employee stock purchase plan | ​ |  | 203,783 | ​ |  | 231,307 | ​ |  | 215,464 | ​ |  | 226,606
Weighted average common and common equivalent shares outstanding | ​ |  | 17,549,107 | ​ |  | 16,045,239 | ​ |  | 16,700,682 | ​ |  | 16,035,394
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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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 http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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