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Pay vs Performance Disclosure | 12 Months Ended
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Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Pay vs Performance Disclosure |  |  |  |
Pay vs Performance Disclosure, Table |
​ | ​ | ​ | ​ | Summary Compensation Table For PEO’s | ​ | ​ | Compensation Actually Paid to PEO (2) | ​ | ​ | Average Summary Compensation Table Total for Non-PEO NEOs | ​ | ​ | Average Compensation Actually Paid to NON-PEO NEOs (2) | ​ | ​ | Total Shareholder Return (TSR) (3) | ​ | ​ | TSR of Peer Group (3,4) | ​ | ​ | Net Income | ​ | ​ | Company Selected Measure– Return on Average Tangible Common Equity | ​
​ | Year(1) | ​ | ​ | $(000s) | ​ | ​ | $(000s) | ​ | ​ | $(000s) | ​ | ​ | $(000s) | ​ | ​ | $ | ​ | ​ | $ | ​ | ​ | $(000s) | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | 2023 | ​ | ​ | ​ | ​ | 1,256 | ​ | ​ | ​ | ​ | ​ | 1,191 | ​ | ​ | ​ | ​ | ​ | 424 | ​ | ​ | ​ | ​ | ​ | 415 | ​ | ​ | ​ | ​ | ​ | 113.17 | ​ | ​ | ​ | ​ | ​ | 112.93 | ​ | ​ | ​ | ​ | ​ | 29,519 | ​ | ​ | ​ | ​ | ​ | 14.58% | ​ | ​
​ | 2022 | ​ | ​ | ​ | ​ | 1,192 | ​ | ​ | ​ | ​ | ​ | 1,143 | ​ | ​ | ​ | ​ | ​ | 424 | ​ | ​ | ​ | ​ | ​ | 404 | ​ | ​ | ​ | ​ | ​ | 113.83 | ​ | ​ | ​ | ​ | ​ | 117.32 | ​ | ​ | ​ | ​ | ​ | 38,990 | ​ | ​ | ​ | ​ | ​ | 19.15% | ​ | ​
​ | 2021 | ​ | ​ | ​ | ​ | 1,148 | ​ | ​ | ​ | ​ | ​ | 1,305 | ​ | ​ | ​ | ​ | ​ | 398 | ​ | ​ | ​ | ​ | ​ | 419 | ​ | ​ | ​ | ​ | ​ | 114.32 | ​ | ​ | ​ | ​ | ​ | 121.92 | ​ | ​ | ​ | ​ | ​ | 36,269 | ​ | ​ | ​ | ​ | ​ | 17.64% | ​ | ​
​ | 2020 | ​ | ​ | ​ | ​ | 1,043 | ​ | ​ | ​ | ​ | ​ | 977 | ​ | ​ | ​ | ​ | ​ | 392 | ​ | ​ | ​ | ​ | ​ | 354 | ​ | ​ | ​ | ​ | ​ | 88.44 | ​ | ​ | ​ | ​ | ​ | 83.62 | ​ | ​ | ​ | ​ | ​ | 27,129 | ​ | ​ | ​ | ​ | ​ | 14.29% | ​ | ​
​ (1) For each of the years presented above, our PEO was Tony C. McKim. In 2020 our other NEOs were Susan A. Norton, Richard M. Elder, Sarah J. Tolman, and Charles A. Wootton. In 2021, 2022 and 2023 our other NEOs were Susan A. Norton, Richard M. Elder, Sarah J. Tolman and Jonathan W. Nicholson. ​ (2) The table below details amounts deducted and added to calculate Average Compensation Actually Paid to the PEO and non-PEO NEOs. ​ (3) Peer group as defined on Page 24 under Compensation Bookmarking. ​
​ | ​ | ​ | ​ | 2020 | ​ | ​ | 2021 | ​ | ​ | 2022 | ​ | ​ | 2023 | ​
​ | Reconciliation of Compensation Actually Paid | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​
​ | Total Compensation per Summary Compensation Table (SCT) | ​ | ​ | ​ | ​ | 1,043 | ​ | ​ | ​ | ​ | ​ | 392 | ​ | ​ | ​ | ​ | ​ | 1,148 | ​ | ​ | ​ | ​ | ​ | 398 | ​ | ​ | ​ | ​ | ​ | 1,192 | ​ | ​ | ​ | ​ | ​ | 424 | ​ | ​ | ​ | ​ | ​ | 1,256 | ​ | ​ | ​ | ​ | ​ | 424 | ​ | ​
​ | Less: Value of Stock Grants reported in SCT | ​ | ​ | ​ | ​ | (204) | ​ | ​ | ​ | ​ | ​ | (52) | ​ | ​ | ​ | ​ | ​ | (183) | ​ | ​ | ​ | ​ | ​ | (49) | ​ | ​ | ​ | ​ | ​ | (201) | ​ | ​ | ​ | ​ | ​ | (60) | ​ | ​ | ​ | ​ | ​ | (233) | ​ | ​ | ​ | ​ | ​ | (59) | ​ | ​
​ | Plus: Year-End Value of Stock Grants Awarded in Fiscal Year that are Unvested and Outstanding | ​ | ​ | ​ | ​ | 179 | ​ | ​ | ​ | ​ | ​ | 39 | ​ | ​ | ​ | ​ | ​ | 269 | ​ | ​ | ​ | ​ | ​ | 54 | ​ | ​ | ​ | ​ | ​ | 168 | ​ | ​ | ​ | ​ | ​ | 45 | ​ | ​ | ​ | ​ | ​ | 194 | ​ | ​ | ​ | ​ | ​ | 58 | ​ | ​
​ | Plus: Change in Fair Value of Prior Year Awards that are Unvested and Outstanding | ​ | ​ | ​ | ​ | (41) | ​ | ​ | ​ | ​ | ​ | (24) | ​ | ​ | ​ | ​ | ​ | 63 | ​ | ​ | ​ | ​ | ​ | 26 | ​ | ​ | ​ | ​ | ​ | (18) | ​ | ​ | ​ | ​ | ​ | (6) | ​ | ​ | ​ | ​ | ​ | (22) | ​ | ​ | ​ | ​ | ​ | (6) | ​ | ​
​ | Plus: Change in Fair Value of Prior Year Awards that Vested this Year | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | (1) | ​ | ​ | ​ | ​ | ​ | 7 | ​ | ​ | ​ | ​ | ​ | (11) | ​ | ​ | ​ | ​ | ​ | 3 | ​ | ​ | ​ | ​ | ​ | 2 | ​ | ​ | ​ | ​ | ​ | (4) | ​ | ​ | ​ | ​ | ​ | (3) | ​ | ​
​ | “Compensation Actually Paid” for Year Shown(1) | ​ | ​ | ​ | ​ | 977 | ​ | ​ | ​ | ​ | ​ | 354 | ​ | ​ | ​ | ​ | ​ | 1,305 | ​ | ​ | ​ | ​ | ​ | 419 | ​ | ​ | ​ | ​ | ​ | 1,143 | ​ | ​ | ​ | ​ | ​ | 404 | ​ | ​ | ​ | ​ | ​ | 1,191 | ​ | ​ | ​ | ​ | ​ | 415 | ​ | ​
​
​ | Name and Address of Beneficial Owner | ​ | ​ | Number of Shares Beneficially Owned | ​ | ​ | Percentage Beneficially Owned | ​
​ | OWNERS OF 5% OR MORE | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | The Midwest Trust Company 5901 College Boulevard, Suite 100 Overland Park, Kansas | ​ | ​ | ​ | ​ | 901,845 | ​ | ​ | ​ | ​ | ​ | 8.01% | ​ | ​
​ | BlackRock Fund Advisors﻿(1) 400 Howard Street San Francisco, California | ​ | ​ | ​ | ​ | 703,999 | ​ | ​ | ​ | ​ | ​ | 6.33% | ​ | ​
Named Executive Officers, Footnote | (1) For each of the years presented above, our PEO was Tony C. McKim. In 2020 our other NEOs were Susan A. Norton, Richard M. Elder, Sarah J. Tolman, and Charles A. Wootton. In 2021, 2022 and 2023 our other NEOs were Susan A. Norton, Richard M. Elder, Sarah J. Tolman and Jonathan W. Nicholson. |  |  |
Peer Group Issuers, Footnote | (3) Peer group as defined on Page 24 under Compensation Bookmarking |  |  |
PEO Total Compensation Amount | $ 1,256,000 | $ 1,192,000 | $ 1,148,000 | $ 1,043,000
PEO Actually Paid Compensation Amount | $ 1,191,000 | 1,143,000 | 1,305,000 | 977,000
Adjustment To PEO Compensation, Footnote |
​ | ​ | ​ | ​ | 2020 | ​ | ​ | 2021 | ​ | ​ | 2022 | ​ | ​ | 2023 | ​
​ | Reconciliation of Compensation Actually Paid | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​
​ | Total Compensation per Summary Compensation Table (SCT) | ​ | ​ | ​ | ​ | 1,043 | ​ | ​ | ​ | ​ | ​ | 392 | ​ | ​ | ​ | ​ | ​ | 1,148 | ​ | ​ | ​ | ​ | ​ | 398 | ​ | ​ | ​ | ​ | ​ | 1,192 | ​ | ​ | ​ | ​ | ​ | 424 | ​ | ​ | ​ | ​ | ​ | 1,256 | ​ | ​ | ​ | ​ | ​ | 424 | ​ | ​
​ | Less: Value of Stock Grants reported in SCT | ​ | ​ | ​ | ​ | (204) | ​ | ​ | ​ | ​ | ​ | (52) | ​ | ​ | ​ | ​ | ​ | (183) | ​ | ​ | ​ | ​ | ​ | (49) | ​ | ​ | ​ | ​ | ​ | (201) | ​ | ​ | ​ | ​ | ​ | (60) | ​ | ​ | ​ | ​ | ​ | (233) | ​ | ​ | ​ | ​ | ​ | (59) | ​ | ​
​ | Plus: Year-End Value of Stock Grants Awarded in Fiscal Year that are Unvested and Outstanding | ​ | ​ | ​ | ​ | 179 | ​ | ​ | ​ | ​ | ​ | 39 | ​ | ​ | ​ | ​ | ​ | 269 | ​ | ​ | ​ | ​ | ​ | 54 | ​ | ​ | ​ | ​ | ​ | 168 | ​ | ​ | ​ | ​ | ​ | 45 | ​ | ​ | ​ | ​ | ​ | 194 | ​ | ​ | ​ | ​ | ​ | 58 | ​ | ​
​ | Plus: Change in Fair Value of Prior Year Awards that are Unvested and Outstanding | ​ | ​ | ​ | ​ | (41) | ​ | ​ | ​ | ​ | ​ | (24) | ​ | ​ | ​ | ​ | ​ | 63 | ​ | ​ | ​ | ​ | ​ | 26 | ​ | ​ | ​ | ​ | ​ | (18) | ​ | ​ | ​ | ​ | ​ | (6) | ​ | ​ | ​ | ​ | ​ | (22) | ​ | ​ | ​ | ​ | ​ | (6) | ​ | ​
​ | Plus: Change in Fair Value of Prior Year Awards that Vested this Year | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | (1) | ​ | ​ | ​ | ​ | ​ | 7 | ​ | ​ | ​ | ​ | ​ | (11) | ​ | ​ | ​ | ​ | ​ | 3 | ​ | ​ | ​ | ​ | ​ | 2 | ​ | ​ | ​ | ​ | ​ | (4) | ​ | ​ | ​ | ​ | ​ | (3) | ​ | ​
​ | “Compensation Actually Paid” for Year Shown(1) | ​ | ​ | ​ | ​ | 977 | ​ | ​ | ​ | ​ | ​ | 354 | ​ | ​ | ​ | ​ | ​ | 1,305 | ​ | ​ | ​ | ​ | ​ | 419 | ​ | ​ | ​ | ​ | ​ | 1,143 | ​ | ​ | ​ | ​ | ​ | 404 | ​ | ​ | ​ | ​ | ​ | 1,191 | ​ | ​ | ​ | ​ | ​ | 415 | ​ | ​
​ |  |  |
Non-PEO NEO Average Total Compensation Amount | $ 424,000 | 424,000 | 398,000 | 392,000
Non-PEO NEO Average Compensation Actually Paid Amount | $ 415,000 | 404,000 | 419,000 | 354,000
Adjustment to Non-PEO NEO Compensation Footnote |
​ | ​ | ​ | ​ | 2020 | ​ | ​ | 2021 | ​ | ​ | 2022 | ​ | ​ | 2023 | ​
​ | Reconciliation of Compensation Actually Paid | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​ | ​ | PEO $(000s) | ​ | ​ | Average of Non-PEO NEOs $(000s) | ​
​ | Total Compensation per Summary Compensation Table (SCT) | ​ | ​ | ​ | ​ | 1,043 | ​ | ​ | ​ | ​ | ​ | 392 | ​ | ​ | ​ | ​ | ​ | 1,148 | ​ | ​ | ​ | ​ | ​ | 398 | ​ | ​ | ​ | ​ | ​ | 1,192 | ​ | ​ | ​ | ​ | ​ | 424 | ​ | ​ | ​ | ​ | ​ | 1,256 | ​ | ​ | ​ | ​ | ​ | 424 | ​ | ​
​ | Less: Value of Stock Grants reported in SCT | ​ | ​ | ​ | ​ | (204) | ​ | ​ | ​ | ​ | ​ | (52) | ​ | ​ | ​ | ​ | ​ | (183) | ​ | ​ | ​ | ​ | ​ | (49) | ​ | ​ | ​ | ​ | ​ | (201) | ​ | ​ | ​ | ​ | ​ | (60) | ​ | ​ | ​ | ​ | ​ | (233) | ​ | ​ | ​ | ​ | ​ | (59) | ​ | ​
​ | Plus: Year-End Value of Stock Grants Awarded in Fiscal Year that are Unvested and Outstanding | ​ | ​ | ​ | ​ | 179 | ​ | ​ | ​ | ​ | ​ | 39 | ​ | ​ | ​ | ​ | ​ | 269 | ​ | ​ | ​ | ​ | ​ | 54 | ​ | ​ | ​ | ​ | ​ | 168 | ​ | ​ | ​ | ​ | ​ | 45 | ​ | ​ | ​ | ​ | ​ | 194 | ​ | ​ | ​ | ​ | ​ | 58 | ​ | ​
​ | Plus: Change in Fair Value of Prior Year Awards that are Unvested and Outstanding | ​ | ​ | ​ | ​ | (41) | ​ | ​ | ​ | ​ | ​ | (24) | ​ | ​ | ​ | ​ | ​ | 63 | ​ | ​ | ​ | ​ | ​ | 26 | ​ | ​ | ​ | ​ | ​ | (18) | ​ | ​ | ​ | ​ | ​ | (6) | ​ | ​ | ​ | ​ | ​ | (22) | ​ | ​ | ​ | ​ | ​ | (6) | ​ | ​
​ | Plus: Change in Fair Value of Prior Year Awards that Vested this Year | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | (1) | ​ | ​ | ​ | ​ | ​ | 7 | ​ | ​ | ​ | ​ | ​ | (11) | ​ | ​ | ​ | ​ | ​ | 3 | ​ | ​ | ​ | ​ | ​ | 2 | ​ | ​ | ​ | ​ | ​ | (4) | ​ | ​ | ​ | ​ | ​ | (3) | ​ | ​
​ | “Compensation Actually Paid” for Year Shown(1) | ​ | ​ | ​ | ​ | 977 | ​ | ​ | ​ | ​ | ​ | 354 | ​ | ​ | ​ | ​ | ​ | 1,305 | ​ | ​ | ​ | ​ | ​ | 419 | ​ | ​ | ​ | ​ | ​ | 1,143 | ​ | ​ | ​ | ​ | ​ | 404 | ​ | ​ | ​ | ​ | ​ | 1,191 | ​ | ​ | ​ | ​ | ​ | 415 | ​ | ​
​ |  |  |
Compensation Actually Paid vs. Total Shareholder Return |  |  |  |
Compensation Actually Paid vs. Net Income |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |  |
Total Shareholder Return Vs Peer Group |  |  |  |
Total Shareholder Return Amount | $ 113,170 | 113,830 | 114,320 | 88,440
Peer Group Total Shareholder Return Amount | 112,930 | 117,320 | 121,920 | 83,620
Net Income (Loss) | $ 29,519,000 | $ 38,990,000 | $ 36,269,000 | $ 27,129,000
Company Selected Measure Amount | 14.58 | 19.15 | 17.64 | 14.29
PEO Name | Tony C. McKim |  |  |
PEO | Equity Awards Value In Summary Compensation Table (Grant Date Value) [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (233,000) | $ (201,000) | $ (183,000) | $ (204,000)
PEO | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 194,000 | 168,000 | 269,000 | 179,000
PEO | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (22,000) | (18,000) | 63,000 | (41,000)
PEO | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (4,000) | 3,000 | 7,000 |
Non-PEO NEO | Equity Awards Value In Summary Compensation Table (Grant Date Value) [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (59,000) | (60,000) | (49,000) | (52,000)
Non-PEO NEO | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 58,000 | 45,000 | 54,000 | 39,000
Non-PEO NEO | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (6,000) | (6,000) | 26,000 | (24,000)
Non-PEO NEO | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (3,000) | $ 2,000 | $ (11,000) | $ (1,000)

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