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Employee Benefit Plans | 12 Months Ended
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Dec. 31, 2018
Retirement Benefits [Abstract] |
Employee Benefit Plans | Employee Benefit Plans The Company provides a contributory trusteed 401(k) deferred compensation and profit sharing plan, which covers substantially all employees. The Company agrees to match certain employee contributions under the 401(k) portion of the plan, while profit sharing contributions are discretionary and are subject to determination by the Board of Directors. Company contributions were $1,438, $1,328, and $1,121 for 2018, 2017, and 2016, respectively. The Company self-insures employee health benefits. Stop loss insurance covers annual losses exceeding $175 per covered family as well as an aggregating specific deductible of $255 for the Company. Management’s policy is to establish a reserve for claims not submitted by a charge to earnings based on prior experience. Charges to earnings were $3,724, $4,192, and $3,153 for 2018, 2017, and 2016, respectively. The Company maintains deferred compensation plans for the benefit of certain directors and officers. Under the plans, the Company agrees in return for the directors and officers deferring the receipt of a portion of their current compensation, to pay a retirement benefit computed as the amount of the compensation deferred plus accrued interest at a variable rate. Accrued benefits payable totaled $2,046 and $1,896 at December 31, 2018 and 2017. Deferred compensation expense was $324, $187, and $297 for 2018, 2017, and 2016, respectively. In conjunction with the plans, the Company purchased life insurance on certain directors and officers. The Company entered into early retirement agreements with certain officers of the Company. Accrued benefits payable as a result of the agreements totaled $0 and $84 at December 31, 2018 and 2017, respectively. Expense associated with these agreements totaled $48 for 2017. Postretirement Medical and Life Benefit Plan The Company has an unfunded postretirement benefit plan covering substantially all of its employees. The medical plan is contributory with the participants’ contributions adjusted annually; the life insurance plans are noncontributory.
Changes in Accumulated Postretirement Benefit Obligations: |  | 2018 |  | 2017
Obligation at the Beginning of Year |  | $ | 1,061 |  |  | $ | 814 |
Unrecognized Loss (Gain) |  | 74 |  |  | 226 |
Components of Net Periodic Postretirement Benefit Cost |  |  |  |  |  |
Service Cost |  | 69 |  |  | 50 |
Interest Cost |  | 34 |  |  | 29 |
Net Expected Benefit Payments |  | (84 | ) |  | (58 | )
Obligation at End of Year |  | $ | 1,154 |  |  | $ | 1,061 |
Components of Postretirement Benefit Expense: |  | 2018 |  | 2017 |  | 2016
Service Cost |  | $ | 69 |  |  | $ | 50 |  |  | $ | 41 |
Interest Cost |  | 34 |  |  | 29 |  |  | 29 |
Amortization of Unrecognized Net (Gain) Loss |  | 32 |  |  | 8 |  |  | 6 |
Net Postretirement Benefit Expense |  | 135 |  |  | 87 |  |  | 76 |
Net Gain (Loss) During Period Recognized in Other Comprehensive Income (Loss) |  | 41 |  |  | 218 |  |  | 18 |
Total Recognized in Net Postretirement Benefit Expense and Other Comprehensive Income |  | $ | 176 |  |  | $ | 305 |  |  | $ | 94 |
Assumptions Used to Determine Net Periodic Cost and Benefit Obligations: |  | 2018 |  | 2017 |  | 2016
Discount Rate |  | 3.91 | % |  | 3.35 | % |  | 3.72 | %
Assumed Health Care Cost Trend Rates at Year-end: |  | 2018 |  | 2017
Health Care Cost Trend Rate Assumed for Next Year |  | 8.00 | % |  | 8.00 | %
Rate that the Cost Trend Rate Gradually Declines to |  | 5.00 | % |  | 5.00 | %
Year that the Rate Reaches the Rate it is Assumed to Remain at |  | 2024 |  |  | 2023 |
Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plan. A one-percentage-point change in assumed health care cost trend rates would have the following effects as of December 31, 2018:
|  | One-Percentage-Point Increase |  | One-Percentage-Point Decrease
Effect on Total of Service and Interest Cost |  | $ | 10 |  |  | $ | (9 | )
Effect on Postretirement Benefit Obligation |  | $ | 74 |  |  | $ | (66 | )
Contributions The Company expects to contribute $92 to its postretirement medical and life insurance plan in 2019. Estimated Future Benefits The following postretirement benefit payments, which reflect expected future service, are expected to be paid:
2019 |  | $ | 92 |
2020 |  | 90 |
2021 |  | 97 |
2022 |  | 91 |
2023 |  | 110 |
2024-2028 |  | 605 |
Multi-Employer Pension Plan Through the acquisition of River Valley Bancorp, the Company acquired a participation in a multi-employer defined benefit pension plan. Effective December 31, 2015, the plan was frozen. Pension expense was approximately $72 and $63 during 2018 and 2017, respectively. Specific plan asset and accumulated benefit information for the Company's portion of the fund is not available. Under the Employee Retirement Income and Security Act of 1974 ("ERISA"), a contributor to a multi-employer pension plan may be liable in the event of complete or partial withdrawal for the benefit payments guaranteed under ERISA, but currently there is no intention to withdraw. The Company participates in the Pentegra Defined Benefit Plan for Financial Institutions (the "Pentegra DB Plan"), a tax-qualified defined-benefit pension plan. The Pentegra DB Plan operates as a multi-employer plan for accounting purposes and as a multiple-employer plan under ERISA and the Internal Revenue Code. There are no collective bargaining agreements in place that require contributions to the Pentegra DB Plan. The Pentegra DB Plan is a single plan under Internal Revenue Code Section 413(c) and, as a result, all of the assets stand behind all of the liabilities. Accordingly, under the Pentegra DB Plan, contributions made by a participating employer may be used to provide benefits to participants of other participating employers. Total contributions made to the Pentegra DB Plan, as reported on Form 5500, equal $367,119 and $153,186 for the plan years ended June 30, 2017 and 2016, respectively. The Company's contributions to the Pentegra DB Plan for the fiscal year ending December 31, 2018 were not more than 5% of total contributions to the Pentegra DB Plan for the year ending June 30, 2017.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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