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Pay vs Performance Disclosure - USD ($) | 1 Months Ended | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Pay vs Performance Disclosure [Table] |  |  |
Pay vs Performance [Table Text Block] |  | 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) | ​
2022 | ​ | ​ | ​ | $ | 5,527,664 | ​ | ​ | ​ | ​ | $ | 310,422 | ​ | ​ | ​ | ​ | $ | 639,740 | ​ | ​ | ​ | ​ | $ | 5,561,608 | ​ | ​ | ​ | ​ | $ | 304,032 | ​ | ​ | ​ | ​ | $ | 604,528 | ​ | ​ | ​ | ​ | $ | 585,681 | ​ | ​ | ​ | ​ | $ | 553,692 | ​ | ​ | ​ | ​ | $ | 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 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 PEO on an interim basis from August 21, 2022 until Christopher S. Forgy was appointed to President and CEO and became our 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. ​ (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: ​
PEO | ​ | ​ | First PEO | ​ | ​ | Second PEO | ​ | ​ | Third PEO | ​
​ | 2022 | ​ | ​ | 2021 | ​ | ​ | 2022 | ​ | ​ | 2022 | ​
Summary Compensation Table (“SCT”) Total for PEO (column (b)) | ​ | ​ | ​ | $ | 5,527,664 | ​ | ​ | ​ | ​ | $ | 3,209,748 | ​ | ​ | ​ | ​ | $ | 310,422 | ​ | ​ | ​ | ​ | $ | 639,740 | ​ | ​
- SCT “Stock Awards” Column (grant date FV of equity awards reported in SCT) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (919,448) | ​ | ​ | ​ | ​ | ​ | (34,497) | ​ | ​ | ​ | ​ | ​ | (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 | ​ | ​ | ​ | ​ | ​ | 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) | ​ | ​ | ​ | ​ | ​ | (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 | ​ | ​ | ​ | ​ | ​ | 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 | ​ | ​ | ​ | ​ | $ | 604,528 | ​ | ​
Average for Non-PEO NEOs | ​ | ​ | 2022 | ​ | ​ | 2021 | ​
Average SCT Total for Non-PEO NEOs (column (d)) | ​ | ​ | ​ | $ | 585,681 | ​ | ​ | ​ | ​ | $ | 513,274 | ​ | ​
- SCT “Stock Awards” Column (grant date FV of equity awards reported in SCT) | ​ | ​ | ​ | ​ | (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 | ​ | ​ | ​ | ​ | 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 | ​ | ​ | ​ | ​ | (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 | ​ | ​ | ​ | ​ | 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 modifications | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Average Compensation Actually Paid to Non-PEO NEOs (column (e )) | ​ | ​ | ​ | $ | 553,692 | ​ | ​ | ​ | ​ | $ | 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 [Text Block] |  | (1) Edward K. Christian served as our 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 PEO on an interim basis from August 21, 2022 until Christopher S. Forgy was appointed to President and CEO and became our 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. |
Adjustment To PEO Compensation, Footnote [Text Block] |  | (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: ​
PEO | ​ | ​ | First PEO | ​ | ​ | Second PEO | ​ | ​ | Third PEO | ​
​ | 2022 | ​ | ​ | 2021 | ​ | ​ | 2022 | ​ | ​ | 2022 | ​
Summary Compensation Table (“SCT”) Total for PEO (column (b)) | ​ | ​ | ​ | $ | 5,527,664 | ​ | ​ | ​ | ​ | $ | 3,209,748 | ​ | ​ | ​ | ​ | $ | 310,422 | ​ | ​ | ​ | ​ | $ | 639,740 | ​ | ​
- SCT “Stock Awards” Column (grant date FV of equity awards reported in SCT) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | (919,448) | ​ | ​ | ​ | ​ | ​ | (34,497) | ​ | ​ | ​ | ​ | ​ | (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 | ​ | ​ | ​ | ​ | ​ | 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) | ​ | ​ | ​ | ​ | ​ | (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 | ​ | ​ | ​ | ​ | ​ | 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 | ​ | ​ | ​ | ​ | $ | 604,528 | ​ | ​
Non-PEO NEO Average Total Compensation Amount |  | $ 585,681 | $ 513,274
Non-PEO NEO Average Compensation Actually Paid Amount |  | $ 553,692 | 524,993
Adjustment to Non-PEO NEO Compensation Footnote [Text Block] |  | (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 | ​ | ​ | 2022 | ​ | ​ | 2021 | ​
Average SCT Total for Non-PEO NEOs (column (d)) | ​ | ​ | ​ | $ | 585,681 | ​ | ​ | ​ | ​ | $ | 513,274 | ​ | ​
- SCT “Stock Awards” Column (grant date FV of equity awards reported in SCT) | ​ | ​ | ​ | ​ | (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 | ​ | ​ | ​ | ​ | 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 | ​ | ​ | ​ | ​ | (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 | ​ | ​ | ​ | ​ | 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 modifications | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Average Compensation Actually Paid to Non-PEO NEOs (column (e )) | ​ | ​ | ​ | $ | 553,692 | ​ | ​ | ​ | ​ | $ | 524,993 | ​ | ​
Compensation Actually Paid vs. Total Shareholder Return [Text Block] |  |  |
Compensation Actually Paid vs. Net Income [Text Block] |  |  |
Total Shareholder Return Amount |  | $ 122.99 | 104.94
Net Income (Loss) |  | 9,202,000 | 11,157,000
PEO Name | Christopher S. Forgy |  |
First PEO [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
PEO Total Compensation Amount |  | 5,527,664 | 3,209,748
PEO Actually Paid Compensation Amount |  | 5,561,608 | 3,319,458
First PEO [Member] | Equity Awards Adjustments Of Stock Awards Grant Date Fair Value Of Equity Awards To SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  |  | (919,448)
First PEO [Member] | Equity Awards Adjustments Of Fair Value Of Equity Awards Granted In The Covered Year That Were Outstanding And Unvested As Of The Covered Year End [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  |  | 966,620
First PEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  |  | 2,364
First PEO [Member] | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | 33,944 | 60,174
Second PEO [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
PEO Total Compensation Amount |  | 310,422 |
PEO Actually Paid Compensation Amount |  | 304,032 |
Second PEO [Member] | Equity Awards Adjustments Of Stock Awards Grant Date Fair Value Of Equity Awards To SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | (34,497) |
Second PEO [Member] | Equity Awards Adjustments Of Fair Value Of Equity Awards Granted In The Covered Year That Were Outstanding And Unvested As Of The Covered Year End [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | 28,367 |
Second PEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | (285) |
Second PEO [Member] | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | 26 |
Third PEO [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
PEO Total Compensation Amount |  | 639,740 |
PEO Actually Paid Compensation Amount |  | 604,528 |
Third PEO [Member] | Equity Awards Adjustments Of Stock Awards Grant Date Fair Value Of Equity Awards To SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | (187,698) |
Third PEO [Member] | Equity Awards Adjustments Of Fair Value Of Equity Awards Granted In The Covered Year That Were Outstanding And Unvested As Of The Covered Year End [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | 154,344 |
Third PEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | (2,017) |
Third PEO [Member] | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | 159 |
Non-PEO NEO [Member] | Equity Awards Adjustments Of Stock Awards Grant Date Fair Value Of Equity Awards To SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | (170,004) | (132,998)
Non-PEO NEO [Member] | Equity Awards Adjustments Of Fair Value Of Equity Awards Granted In The Covered Year That Were Outstanding And Unvested As Of The Covered Year End [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | 139,795 | 139,821
Non-PEO NEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | (1,950) | 193
Non-PEO NEO [Member] | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount |  | $ 171 | $ 4,703

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