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Pay vs Performance Disclosure - USD ($) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Pay vs Performance Disclosure |  |  |
Pay vs Performance Disclosure, Table | Pay vs. Performance
Year |  | Summary Compensation Table Total for PEO ($) (1) |  | Compensation Actually Paid to PEO ($) (3) |  | Average Summary Compensation Table Total for Non-PEO NEOs ($) (2) |  | Average Compensation Actually Paid to Non-PEO NEOs ($) (3) |  | Value of Initial Fixed $100 Investment Based On Total Shareholder Return ($) (4) |  | Net Income ($) (5) (000’s)
2024 |  | $910,158 |  | $1,004,203 |  | $394,005 |  | $415,696 |  | $99 |  | $25,938
2023 |  | $701,875 |  | $666,819 |  | $337,707 |  | $322,661 |  | $80 |  | $22,787
2022 |  | $753,619 |  | $708,932 |  | $380,612 |  | $361,563 |  | $85 |  | $32,515
(1) | Lars B. Eller was the Registrant’s PEO for each of the 2024, 2023 and 2022 fiscal years.
(2) | For the 2023 and 2022 fiscal years, the Registrant’s Non-PEO NEOs were: Barbara J. Britenriker; Rex D. Rice; and Benet S. Rupp. For the 2024 fiscal year, the Registrant’s Non-PEO NEOs were: Barbara J. Britenriker; David R. Gerken, Eric D. Faust and Shalini Singhal. Rex D. Rice and Benet S. Rupp both retired during 2024.
(3) | The amounts disclosed reflect the amounts listed in the Compensation Actually Paid Adjustments Table presented below.
(4) | Computed based upon a hypothetical investment of $100 in common stock on January 1, 2022 with dividends paid reinvested.
(5) | As reported on Registrant’s Consolidated Statements of Income for the applicable fiscal reporting year, as provided under Part II Item 8 of Registrant’s Annual Report on Form 10-K.
|  | 2024 |  | 2023 |  | 2022
Adjustment |  | PEO ($) |  | Non-PEO NEOs ($) |  | PEO ($) |  | Non-PEO NEOs ($) |  | PEO ($) |  | Non-PEO NEOs ($)
Less Grant date value of equity awards |  | (129,440) |  | (39,648) |  | (124,320) |  | (50,937) |  | (122,560) |  | (48,003)
Year-end fair value of current year award |  | 166,834 |  | 39,610 |  | 119,040 |  | 48,782 |  | 108,720 |  | 42,582
Year-over-year change in fair value of unvested awards |  | 40,920 |  | 16,432 |  | (16,660) |  | (6,902) |  | (33,900) |  | (14,974)
Change in value of awards vesting during the current year |  | 2,250 |  | 1,000 |  | (23,910) |  | (10,494) |  | (4,290) |  | (1,907)
Dividends paid on unvested awards |  | 13,481 |  | 4,297 |  | 10,794 |  | 4,505 |  | 7,343 |  | 3,253
Total adjustments |  | 94,045 |  | 21,691 |  | (35,056) |  | (15,046) |  | (44,687) |  | (19,049)
Named Executive Officers, Footnote |
(1) | Lars B. Eller was the Registrant’s PEO for each of the 2024, 2023 and 2022 fiscal years.
(2) | For the 2023 and 2022 fiscal years, the Registrant’s Non-PEO NEOs were: Barbara J. Britenriker; Rex D. Rice; and Benet S. Rupp. For the 2024 fiscal year, the Registrant’s Non-PEO NEOs were: Barbara J. Britenriker; David R. Gerken, Eric D. Faust and Shalini Singhal. Rex D. Rice and Benet S. Rupp both retired during 2024.
PEO Total Compensation Amount | $ 910,158 | $ 701,875 | $ 753,619
PEO Actually Paid Compensation Amount | $ 1,004,203 | 666,819 | 708,932
Adjustment To PEO Compensation, Footnote |
|  | 2024 |  | 2023 |  | 2022
Adjustment |  | PEO ($) |  | Non-PEO NEOs ($) |  | PEO ($) |  | Non-PEO NEOs ($) |  | PEO ($) |  | Non-PEO NEOs ($)
Less Grant date value of equity awards |  | (129,440) |  | (39,648) |  | (124,320) |  | (50,937) |  | (122,560) |  | (48,003)
Year-end fair value of current year award |  | 166,834 |  | 39,610 |  | 119,040 |  | 48,782 |  | 108,720 |  | 42,582
Year-over-year change in fair value of unvested awards |  | 40,920 |  | 16,432 |  | (16,660) |  | (6,902) |  | (33,900) |  | (14,974)
Change in value of awards vesting during the current year |  | 2,250 |  | 1,000 |  | (23,910) |  | (10,494) |  | (4,290) |  | (1,907)
Dividends paid on unvested awards |  | 13,481 |  | 4,297 |  | 10,794 |  | 4,505 |  | 7,343 |  | 3,253
Total adjustments |  | 94,045 |  | 21,691 |  | (35,056) |  | (15,046) |  | (44,687) |  | (19,049)
Non-PEO NEO Average Total Compensation Amount | $ 394,005 | 337,707 | 380,612
Non-PEO NEO Average Compensation Actually Paid Amount | $ 415,696 | 322,661 | 361,563
Adjustment to Non-PEO NEO Compensation Footnote |
|  | 2024 |  | 2023 |  | 2022
Adjustment |  | PEO ($) |  | Non-PEO NEOs ($) |  | PEO ($) |  | Non-PEO NEOs ($) |  | PEO ($) |  | Non-PEO NEOs ($)
Less Grant date value of equity awards |  | (129,440) |  | (39,648) |  | (124,320) |  | (50,937) |  | (122,560) |  | (48,003)
Year-end fair value of current year award |  | 166,834 |  | 39,610 |  | 119,040 |  | 48,782 |  | 108,720 |  | 42,582
Year-over-year change in fair value of unvested awards |  | 40,920 |  | 16,432 |  | (16,660) |  | (6,902) |  | (33,900) |  | (14,974)
Change in value of awards vesting during the current year |  | 2,250 |  | 1,000 |  | (23,910) |  | (10,494) |  | (4,290) |  | (1,907)
Dividends paid on unvested awards |  | 13,481 |  | 4,297 |  | 10,794 |  | 4,505 |  | 7,343 |  | 3,253
Total adjustments |  | 94,045 |  | 21,691 |  | (35,056) |  | (15,046) |  | (44,687) |  | (19,049)
Total Shareholder Return Amount | $ 99 | 80 | 85
Net Income (Loss) | $ 25,938,000 | 22,787,000 | 32,515,000
PEO Name | Lars B. Eller |  |
PEO |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | $ 94,045 | (35,056) | (44,687)
PEO | Grant date value of equity awards [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | (129,440) | (124,320) | (122,560)
PEO | Year-end fair value of current year award [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 166,834 | 119,040 | 108,720
PEO | Year-over-year change in fair value of unvested awards [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 40,920 | (16,660) | (33,900)
PEO | Change in value of awards vesting during the current year [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 2,250 | (23,910) | (4,290)
PEO | Dividends paid on unvested awards [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 13,481 | 10,794 | 7,343
Non-PEO NEO |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 21,691 | (15,046) | (19,049)
Non-PEO NEO | Grant date value of equity awards [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | (39,648) | (50,937) | (48,003)
Non-PEO NEO | Year-end fair value of current year award [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 39,610 | 48,782 | 42,582
Non-PEO NEO | Year-over-year change in fair value of unvested awards [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 16,432 | (6,902) | (14,974)
Non-PEO NEO | Change in value of awards vesting during the current year [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 1,000 | (10,494) | (1,907)
Non-PEO NEO | Dividends paid on unvested awards [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | $ 4,297 | $ 4,505 | $ 3,253

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