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Note 13 - Employee Benefit Plans | 6 Months Ended
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Mar. 31, 2022
Notes to Financial Statements |
Retirement Benefits [Text Block] |
13. | Employee Benefit Plans
The Company has both a pension plan and a postretirement plan. The pension plan covers the Company’s employees hired before January 1, 2017 and provides retirement income based on years of service and employee compensation. The postretirement plan provides certain health care and supplemental life insurance benefits to retired employees who meet specific age and service requirements. Net pension plan and postretirement plan expense is detailed as follows:
|  | Three Months Ended |  |  | Six Months Ended |
|  | March 31, |  |  | March 31, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Components of net periodic pension cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 162,072 |  |  | $ | 183,570 |  |  | $ | 324,144 |  |  | $ | 367,140 |
Interest cost |  |  | 253,279 |  |  |  | 243,785 |  |  |  | 506,558 |  |  |  | 487,570 |
Expected return on plan assets |  |  | (457,888 | ) |  |  | (503,936 | ) |  |  | (915,776 | ) |  |  | (1,007,872 | )
Recognized loss |  |  | 36,600 |  |  |  | 125,535 |  |  |  | 73,200 |  |  |  | 251,070 |
Net periodic pension cost (benefit) |  | $ | (5,937 | ) |  | $ | 48,954 |  |  | $ | (11,874 | ) |  | $ | 97,908 |
|  | Three Months Ended |  |  | Six Months Ended |
|  | March 31, |  |  | March 31, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Components of postretirement benefit cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 24,450 |  |  | $ | 35,172 |  |  | $ | 48,900 |  |  | $ | 70,344 |
Interest cost |  |  | 110,930 |  |  |  | 107,623 |  |  |  | 221,860 |  |  |  | 215,246 |
Expected return on plan assets |  |  | (166,541 | ) |  |  | (149,122 | ) |  |  | (333,082 | ) |  |  | (298,244 | )
Recognized loss |  |  | — |  |  |  | 38,664 |  |  |  | — |  |  |  | 77,328 |
Net postretirement benefit cost (benefit) |  | $ | (31,161 | ) |  | $ | 32,337 |  |  | $ | (62,322 | ) |  | $ | 64,674 |
The components of net periodic benefit cost, other than the service cost component, are included in other income, net in the condensed consolidated statements of income. Service cost is included in operations and maintenance expense in the condensed consolidated statements of income. The table below reflects the Company's actual contributions made fiscal year-to-date and the expected remaining contributions to be made during the balance of the current fiscal year.
|  | Fiscal Year-to-Date Contributions |  |  | Remaining Fiscal Year Contributions |
Pension plan |  | $ | — |  |  | $ | 500,000 |
Postretirement plan |  |  | — |  |  |  | 400,000 |
Total |  | $ | — |  |  | $ | 900,000 |

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