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Employee Benefit Plans | 6 Months Ended
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Jun. 30, 2021
Employee Benefit Plans |
Employee Benefit Plans | NOTE 8: Employee Benefit Plans ​ The following table summarizes the components of net periodic benefit cost for the Bank’s non-contributory cash balance pension plan. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, | ​ | Six Months Ended June 30,
(Dollars in thousands) |  | 2021 |  | 2020 |  | 2021 |  | 2020 |
Components of net periodic benefit cost: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Service cost, included in salaries and employee benefits | ​ | $ | 498 | ​ | $ | 415 | ​ | $ | 985 | ​ | $ | 801 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other components of net periodic benefit cost: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest cost | ​ |  | 113 | ​ |  | 140 | ​ |  | 229 | ​ |  | 275 | ​
Expected return on plan assets | ​ |  | (427) | ​ |  | (371) | ​ |  | (867) | ​ |  | (745) | ​
Amortization of prior service credit | ​ |  | (17) | ​ |  | (17) | ​ |  | (34) | ​ |  | (34) | ​
Amortization of net obligation at transition | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​
Recognized net actuarial losses | ​ |  | 61 | ​ |  | 57 | ​ |  | 121 | ​ |  | 99 | ​
Other components of net periodic benefit cost, included in other noninterest income | ​ | ​ | (270) | ​ | ​ | (191) | ​ | ​ | (551) | ​ | ​ | (405) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net periodic benefit cost | ​ | $ | 228 | ​ | $ | 224 | ​ | $ | 434 | ​ | $ | 396 | ​
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