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Defined Benefit Plans | 6 Months Ended
--- | ---
Jun. 30, 2022
Defined Benefit Plans And Other Postretirement Benefit Plans Disclosures [Abstract] |
Defined Benefit Plans |
| Note 11 - Defined Benefit Plans
Mid Penn has an unfunded noncontributory defined benefit retirement plan for directors. The plan provides defined benefits based on years of service. Mid Penn also sponsors a defined benefit healthcare plan that provides post-retirement medical benefits and life insurance to qualifying full-time employees. These healthcare and life insurance plans are noncontributory and each plan uses a December 31 measurement date. As a result of the acquisition of Scottdale on January 8, 2018, Mid Penn assumed a noncontributory defined benefit pension plan covering certain former employees of Scottdale. Mid Penn does not expect any necessary contributions to this defined benefit plan during the year ended 2022. A December 31 measurement date for the plan is used. The components of net periodic benefit costs from these defined benefit plans are as follows:
| Three Months Ended June 30, |
(Dollars in thousands) | Pension Benefits |  |  | Other Benefits |
| 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Service cost | $ | 30 |  |  | $ | 33 |  |  | $ | 6 |  |  | $ | — |
Interest cost |  | 41 |  |  |  | 40 |  |  |  | 1 |  |  |  | 2 |
Expected return on plan assets |  | (59 | ) |  |  | (57 | ) |  |  | — |  |  |  | — |
Accretion of prior service cost |  | — |  |  |  | — |  |  |  | (5 | ) |  |  | (5 | )
Amortization of net (gain) loss |  | (2 | ) |  |  | — |  |  |  | 1 |  |  |  | 4 |
Net periodic benefit expense | $ | 10 |  |  | $ | 16 |  |  | $ | 3 |  |  | $ | 1 |
| Six Months Ended June 30, |
(Dollars in thousands) | Pension Benefits |  |  | Other Benefits |
| 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Service cost | $ | 72 |  |  | $ | 65 |  |  | $ | 10 |  |  | $ | 1 |
Interest cost |  | 87 |  |  |  | 80 |  |  |  | 18 |  |  |  | 4 |
Expected return on plan assets |  | (118 | ) |  |  | (113 | ) |  |  | — |  |  |  | — |
Accretion of prior service cost |  | — |  |  |  | — |  |  |  | (10 | ) |  |  | (10 | )
Amortization of net (gain) loss |  | (4 | ) |  |  | — |  |  |  | 5 |  |  |  | 4 |
Settlement gain |  | — |  |  |  | (49 | ) |  |  | — |  |  |  | — |
Net periodic benefit expense (income) | $ | 37 |  |  | $ | (17 | ) |  | $ | 23 |  |  | $ | (1 | )
Service costs are reported as a component of salaries and employee benefits on the consolidated statement of income, while interest costs, expected return on plan assets and amortization (accretion) of prior service cost are reported as a component of other income.

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