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EARNINGS PER SHARE | 6 Months Ended
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Jun. 30, 2023
EARNINGS PER SHARE |
EARNINGS PER SHARE | NOTE 4: EARNINGS PER SHARE ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended June 30,
​ | ​ | 2023 |  | 2022
​ | ​ | (In Thousands, Except Per Share Data)
Basic: | ​ | ​ | ​ | ​ | ​ | ​
Average common shares outstanding | ​ |  | 12,032 | ​ |  | 12,581
Net income |  | $ | 18,320 |  | $ | 18,224
Per common share amount |  | $ | 1.52 |  | $ | 1.45
​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted: | ​ | ​ | ​ | ​ | ​ | ​
Average common shares outstanding | ​ | ​ | 12,032 | ​ | ​ | 12,581
Net effect of dilutive stock options – based on the treasury stock method using average market price | ​ | ​ | 37 | ​ | ​ | 102
Diluted common shares | ​ | ​ | 12,069 | ​ | ​ | 12,683
Net income |  | $ | 18,320 |  | $ | 18,224
Per common share amount |  | $ | 1.52 |  | $ | 1.44
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Six Months Ended June 30,
​ | ​ | 2023 |  | 2022
​ | ​ | (In Thousands, Except Per Share Data)
Basic: | ​ | ​ |  |  | ​ |
Average common shares outstanding | ​ | ​ | 12,116 |  | ​ | 12,775
Net income | ​ | $ | 38,776 | ​ | $ | 35,211
Per common share amount | ​ | $ | 3.20 | ​ | $ | 2.76
​ | ​ | ​ | ​ | ​ | ​ | ​
Diluted: | ​ |  | ​ | ​ |  | ​
Average common shares outstanding | ​ |  | 12,116 | ​ |  | 12,775
Net effect of dilutive stock options – based on the treasury stock method using average market price | ​ |  | 53 | ​ |  | 108
Diluted common shares | ​ |  | 12,169 | ​ |  | 12,883
Net income | ​ | $ | 38,776 | ​ | $ | 35,211
Per common share amount | ​ | $ | 3.19 | ​ | $ | 2.73
​ Options outstanding at June 30, 2023 and 2022, to purchase 767,479 and 372,449 shares of common stock, respectively, were not included in the computation of diluted earnings per common share for each of the three month periods because the exercise prices of such options were greater than the average market prices of the common stock for the three months ended June 30, 2023 and 2022, respectively. Options outstanding at June 30, 2023 and 2022, to purchase 675,118 and 372,449 shares of common stock, respectively, were not included in the computation of diluted earnings per common share for each of the six month periods because the exercise prices of such options were greater than the average market prices of the common stock for the six months ended June 30, 2023 and 2022, respectively.

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