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Pay vs Performance Disclosure - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Pay vs Performance Disclosure |  |  |
Pay vs Performance Disclosure, Table | PAY VERSUS PERFORMANCE The following table sets forth the pay versus performance including relationship between executive compensation actually paid, as calculated by SEC rules and Company performance. Pay versus Performance Table
Year (a) | ​ | ​ | Summary Compensation table total for first PEO (b) | ​ | ​ | Summary Compensation table total for second PEO (b) | ​ | ​ | Summary Compensation table total for third PEO (b) | ​ | ​ | Compensation actually paid to first PEO (c)(1)(2) | ​ | ​ | Compensation actually paid to second PEO (c)(1)(2) | ​ | ​ | Compensation actually paid to third PEO (c)(1)(2) | ​ | ​ | Average Summary compensation table total for non-PEO NEOs (d) | ​ | ​ | Average compensation actually paid to non-PEO NEOs (e)(1)(2) | ​ | ​ | Value of initial fixed $100 investment based on shareholder return (f)(3) | ​ | ​ | Net income (h)(4) | ​
2023 | ​ | ​ | ​ | ​ | N/A | ​ | ​ | ​ | ​ | ​ | N/A | ​ | ​ | ​ | ​ | $ | 1,751,842 | ​ | ​ | ​ | ​ | ​ | N/A | ​ | ​ | ​ | ​ | ​ | N/A | ​ | ​ | ​ | ​ | $ | 1,796,443 | ​ | ​ | ​ | ​ | $ | 636,321 | ​ | ​ | ​ | ​ | $ | 638,334 | ​ | ​ | ​ | ​ | $ | 131.66 | ​ | ​ | ​ | ​ | $ | 9,500,000 | ​ | ​
2022 | ​ | ​ | ​ | $ | 5,527,664 | ​ | ​ | ​ | ​ | $ | 310,422 | ​ | ​ | ​ | ​ | $ | 639,740 | ​ | ​ | ​ | ​ | $ | 5,561,608 | ​ | ​ | ​ | ​ | $ | 304,032 | ​ | ​ | ​ | ​ | $ | 604,528 | ​ | ​ | ​ | ​ | $ | 585,681 | ​ | ​ | ​ | ​ | $ | 553,693 | ​ | ​ | ​ | ​ | $ | 122.99 | ​ | ​ | ​ | ​ | $ | 9,202,000 | ​ | ​
2021 | ​ | ​ | ​ | $ | 3,209,748 | ​ | ​ | ​ | ​ | ​ | N/A | ​ | ​ | ​ | ​ | ​ | N/A | ​ | ​ | ​ | ​ | $ | 3,319,458 | ​ | ​ | ​ | ​ | ​ | N/A | ​ | ​ | ​ | ​ | ​ | N/A | ​ | ​ | ​ | ​ | $ | 513,274 | ​ | ​ | ​ | ​ | $ | 524,993 | ​ | ​ | ​ | ​ | $ | 104.94 | ​ | ​ | ​ | ​ | $ | 11,157,000 | ​ | ​
​ (1) Edward K. Christian served as our first principal executive officer (“PEO”) for the full year 2021 and from January 1, 2022 until his passing on August 19, 2022. Warren S. Lada served as our second PEO on an interim basis from August 21, 2022 until Christopher S. Forgy was appointed to President and CEO and became our third PEO on December 7, 2022. Our non-PEO named executive officers (“NEOs”) included (a) for 2021, Samuel D. Bush and Christopher S. Forgy and (b) for 2022, Samuel D. Bush and Catherine A. Bobinski and (c) for 2023, Samuel D. Bush and Wayne P. Leland. ​ (2) For each year the values included in these columns for the compensation actually paid to our PEO and the average compensation actually paid to our non-PEO NEOs reflect the following adjustments to the values included in columns (b) and (d), respectively: ​
​ | ​ | ​ | First PEO | ​ | ​ | Second PEO | ​ | ​ | Third PEO | ​
PEO | ​ | ​ | 2022 | ​ | ​ | 2021 | ​ | ​ | 2022 | ​ | ​ | 2023 | ​ | ​ | 2022 | ​
Summary Compensation Table (“SCT”) Total for PEO (column (b)) | ​ | ​ | ​ | $ | 5,527,664 | ​ | ​ | ​ | ​ | $ | 3,209,748 | ​ | ​ | ​ | ​ | $ | 310,422 | ​ | ​ | ​ | ​ | $ | 1,751,842 | ​ | ​ | ​ | ​ | $ | 639,740 | ​ | ​
- SCT “Stock Awards” Column (grant date FV of equity awards reported in SCT) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (919,448) | ​ | ​ | ​ | ​ | ​ | (34,497) | ​ | ​ | ​ | ​ | ​ | (737,005) | ​ | ​ | ​ | ​ | ​ | (187,698) | ​ | ​
+ year-end fair value of equity awards granted in the covered year that were outstanding and unvested as of the covered year-end | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 966,620 | ​ | ​ | ​ | ​ | ​ | 28,367 | ​ | ​ | ​ | ​ | ​ | 803,809 | ​ | ​ | ​ | ​ | ​ | 154,344 | ​ | ​
+/- year over year change in fair value of equity awards granted in prior years that are outstanding and unvested as of the covered year-end | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 2,364 | ​ | ​ | ​ | ​ | ​ | (285) | ​ | ​ | ​ | ​ | ​ | (8,173) | ​ | ​ | ​ | ​ | ​ | (2,017) | ​ | ​
+ vesting date fair value of equity awards granted and vested in the covered year | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+/- year-over-year change in fair value of equity awards granted in prior years that vested in the covered year | ​ | ​ | ​ | ​ | 33,944 | ​ | ​ | ​ | ​ | ​ | 60,174 | ​ | ​ | ​ | ​ | ​ | 26 | ​ | ​ | ​ | ​ | ​ | (14,030) | ​ | ​ | ​ | ​ | ​ | 159 | ​ | ​
- fair value as of prior year end equity awards granted in prior years that failed to vest in the covered year (i.e., forfeited) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+ dollar value of dividends/earnings paid on equity awards in the covered year | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+ excess fair value for equity award modifications | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Compensation Actually Paid to PEO (column (c)) | ​ | ​ | ​ | $ | 5,561,608 | ​ | ​ | ​ | ​ | $ | 3,319,458 | ​ | ​ | ​ | ​ | $ | 304,032 | ​ | ​ | ​ | ​ | $ | 1,796,443 | ​ | ​ | ​ | ​ | $ | 604,528 | ​ | ​
Average for Non-PEO NEOs | ​ | ​ | 2023 | ​ | ​ | 2022 | ​ | ​ | 2021 | ​
Average SCT Total for Non-PEO NEOs (column (d)) | ​ | ​ | ​ | $ | 636,321 | ​ | ​ | ​ | ​ | $ | 585,681 | ​ | ​ | ​ | ​ | $ | 513,274 | ​ | ​
- SCT “Stock Awards” Column (grant date FV of equity awards reported in SCT) | ​ | ​ | ​ | ​ | (202,763) | ​ | ​ | ​ | ​ | ​ | (170,004) | ​ | ​ | ​ | ​ | ​ | (132,998) | ​ | ​
+ year-end fair value of equity awards granted in the covered year that were outstanding and unvested as of the covered year-end | ​ | ​ | ​ | ​ | 221,142 | ​ | ​ | ​ | ​ | ​ | 139,795 | ​ | ​ | ​ | ​ | ​ | 139,821 | ​ | ​
+/- year over year change in fair value of equity awards granted in prior years that are outstanding and unvested as of the covered year-end | ​ | ​ | ​ | ​ | (6,057) | ​ | ​ | ​ | ​ | ​ | (1,950) | ​ | ​ | ​ | ​ | ​ | 193 | ​ | ​
+ vesting date fair value of equity awards granted and vested in the covered year | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+/- year-over-year change in fair value of equity awards granted in prior years that vested in the covered year | ​ | ​ | ​ | ​ | (10,309) | ​ | ​ | ​ | ​ | ​ | 171 | ​ | ​ | ​ | ​ | ​ | 4,703 | ​ | ​
‘- fair value as of prior year end equity awards granted in prior years that failed to vest in the covered year (i.e., forfeited) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+ dollar value of dividends/earnings paid on equity awards in the covered year | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+ excess fair value for equity award modification | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Average Compensation Actually Paid to Non-PEO NEOs (column ( e)) | ​ | ​ | ​ | $ | 638,334 | ​ | ​ | ​ | ​ | $ | 553,693 | ​ | ​ | ​ | ​ | $ | 524,993 | ​ | ​
​ (3) For each year, total shareholder return for the Company was calculated in accordance with Item 201 (e) and Item 402 (v) of Regulation S-K. ​ (4) Net income is rounded to the nearest thousand. |  |
Named Executive Officers, Footnote | (1) Edward K. Christian served as our first principal executive officer (“PEO”) for the full year 2021 and from January 1, 2022 until his passing on August 19, 2022. Warren S. Lada served as our second PEO on an interim basis from August 21, 2022 until Christopher S. Forgy was appointed to President and CEO and became our third PEO on December 7, 2022. Our non-PEO named executive officers (“NEOs”) included (a) for 2021, Samuel D. Bush and Christopher S. Forgy and (b) for 2022, Samuel D. Bush and Catherine A. Bobinski and (c) for 2023, Samuel D. Bush and Wayne P. Leland. |  |
Adjustment To PEO Compensation, Footnote | (2) For each year the values included in these columns for the compensation actually paid to our PEO and the average compensation actually paid to our non-PEO NEOs reflect the following adjustments to the values included in columns (b) and (d), respectively: ​
​ | ​ | ​ | First PEO | ​ | ​ | Second PEO | ​ | ​ | Third PEO | ​
PEO | ​ | ​ | 2022 | ​ | ​ | 2021 | ​ | ​ | 2022 | ​ | ​ | 2023 | ​ | ​ | 2022 | ​
Summary Compensation Table (“SCT”) Total for PEO (column (b)) | ​ | ​ | ​ | $ | 5,527,664 | ​ | ​ | ​ | ​ | $ | 3,209,748 | ​ | ​ | ​ | ​ | $ | 310,422 | ​ | ​ | ​ | ​ | $ | 1,751,842 | ​ | ​ | ​ | ​ | $ | 639,740 | ​ | ​
- SCT “Stock Awards” Column (grant date FV of equity awards reported in SCT) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (919,448) | ​ | ​ | ​ | ​ | ​ | (34,497) | ​ | ​ | ​ | ​ | ​ | (737,005) | ​ | ​ | ​ | ​ | ​ | (187,698) | ​ | ​
+ year-end fair value of equity awards granted in the covered year that were outstanding and unvested as of the covered year-end | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 966,620 | ​ | ​ | ​ | ​ | ​ | 28,367 | ​ | ​ | ​ | ​ | ​ | 803,809 | ​ | ​ | ​ | ​ | ​ | 154,344 | ​ | ​
+/- year over year change in fair value of equity awards granted in prior years that are outstanding and unvested as of the covered year-end | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 2,364 | ​ | ​ | ​ | ​ | ​ | (285) | ​ | ​ | ​ | ​ | ​ | (8,173) | ​ | ​ | ​ | ​ | ​ | (2,017) | ​ | ​
+ vesting date fair value of equity awards granted and vested in the covered year | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+/- year-over-year change in fair value of equity awards granted in prior years that vested in the covered year | ​ | ​ | ​ | ​ | 33,944 | ​ | ​ | ​ | ​ | ​ | 60,174 | ​ | ​ | ​ | ​ | ​ | 26 | ​ | ​ | ​ | ​ | ​ | (14,030) | ​ | ​ | ​ | ​ | ​ | 159 | ​ | ​
- fair value as of prior year end equity awards granted in prior years that failed to vest in the covered year (i.e., forfeited) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+ dollar value of dividends/earnings paid on equity awards in the covered year | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+ excess fair value for equity award modifications | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Compensation Actually Paid to PEO (column (c)) | ​ | ​ | ​ | $ | 5,561,608 | ​ | ​ | ​ | ​ | $ | 3,319,458 | ​ | ​ | ​ | ​ | $ | 304,032 | ​ | ​ | ​ | ​ | $ | 1,796,443 | ​ | ​ | ​ | ​ | $ | 604,528 | ​ | ​
Non-PEO NEO Average Total Compensation Amount | $ 636,321 | $ 585,681 | $ 513,274
Non-PEO NEO Average Compensation Actually Paid Amount | $ 638,334 | 553,693 | 524,993
Adjustment to Non-PEO NEO Compensation Footnote | (2) For each year the values included in these columns for the compensation actually paid to our PEO and the average compensation actually paid to our non-PEO NEOs reflect the following adjustments to the values included in columns (b) and (d), respectively:
Average for Non-PEO NEOs | ​ | ​ | 2023 | ​ | ​ | 2022 | ​ | ​ | 2021 | ​
Average SCT Total for Non-PEO NEOs (column (d)) | ​ | ​ | ​ | $ | 636,321 | ​ | ​ | ​ | ​ | $ | 585,681 | ​ | ​ | ​ | ​ | $ | 513,274 | ​ | ​
- SCT “Stock Awards” Column (grant date FV of equity awards reported in SCT) | ​ | ​ | ​ | ​ | (202,763) | ​ | ​ | ​ | ​ | ​ | (170,004) | ​ | ​ | ​ | ​ | ​ | (132,998) | ​ | ​
+ year-end fair value of equity awards granted in the covered year that were outstanding and unvested as of the covered year-end | ​ | ​ | ​ | ​ | 221,142 | ​ | ​ | ​ | ​ | ​ | 139,795 | ​ | ​ | ​ | ​ | ​ | 139,821 | ​ | ​
+/- year over year change in fair value of equity awards granted in prior years that are outstanding and unvested as of the covered year-end | ​ | ​ | ​ | ​ | (6,057) | ​ | ​ | ​ | ​ | ​ | (1,950) | ​ | ​ | ​ | ​ | ​ | 193 | ​ | ​
+ vesting date fair value of equity awards granted and vested in the covered year | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+/- year-over-year change in fair value of equity awards granted in prior years that vested in the covered year | ​ | ​ | ​ | ​ | (10,309) | ​ | ​ | ​ | ​ | ​ | 171 | ​ | ​ | ​ | ​ | ​ | 4,703 | ​ | ​
‘- fair value as of prior year end equity awards granted in prior years that failed to vest in the covered year (i.e., forfeited) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+ dollar value of dividends/earnings paid on equity awards in the covered year | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
+ excess fair value for equity award modification | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Average Compensation Actually Paid to Non-PEO NEOs (column ( e)) | ​ | ​ | ​ | $ | 638,334 | ​ | ​ | ​ | ​ | $ | 553,693 | ​ | ​ | ​ | ​ | $ | 524,993 | ​ | ​
Compensation Actually Paid vs. Total Shareholder Return |  |  |
Compensation Actually Paid vs. Net Income |  |  |
Total Shareholder Return Amount | $ 131.66 | 122.99 | 104.94
Net Income (Loss) | $ 9,500,000 | 9,202,000 | 11,157,000
PEO Name | Christopher S. Forgy |  |
Third PEO [Member] |  |  |
Pay vs Performance Disclosure |  |  |
PEO Total Compensation Amount | $ 1,751,842 | 639,740 |
PEO Actually Paid Compensation Amount | 1,796,443 | 604,528 |
First PEO [Member] |  |  |
Pay vs Performance Disclosure |  |  |
PEO Total Compensation Amount | 5,527,664 | 5,527,664 | 3,209,748
PEO Actually Paid Compensation Amount |  | 5,561,608 | 3,319,458
Second PEO [Member] |  |  |
Pay vs Performance Disclosure |  |  |
PEO Total Compensation Amount |  | 310,422 |
PEO Actually Paid Compensation Amount |  | 304,032 |
PEO | Third PEO [Member] | Equity Awards Value In Summary Compensation Table (Grant Date Value) |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | (737,005) | (187,698) |
PEO | Third PEO [Member] | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 803,809 | 154,344 |
PEO | Third PEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | (8,173) | (2,017) |
PEO | Third PEO [Member] | 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 | (14,030) | 159 |
PEO | First PEO [Member] | Equity Awards Value In Summary Compensation Table (Grant Date Value) |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount |  |  | (919,448)
PEO | First PEO [Member] | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount |  |  | 966,620
PEO | First PEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount |  |  | 2,364
PEO | First PEO [Member] | 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 |  | 33,944 | 60,174
PEO | Second PEO [Member] | Equity Awards Value In Summary Compensation Table (Grant Date Value) |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount |  | (34,497) |
PEO | Second PEO [Member] | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount |  | 28,367 |
PEO | Second PEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount |  | (285) |
PEO | Second PEO [Member] | 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 |  | 26 |
Non-PEO NEO | Equity Awards Value In Summary Compensation Table (Grant Date Value) |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | (202,763) | (170,004) | (132,998)
Non-PEO NEO | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 221,142 | 139,795 | 139,821
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 | (6,057) | (1,950) | 193
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 | $ (10,309) | $ 171 | $ 4,703

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