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Equity Compensation Plan Information (Narrative) (Details) |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Mar. 26, 2022 shares | Mar. 26, 2021 shares | Mar. 26, 2020 | Mar. 31, 2022 USD ($) $ / shares shares | May 31, 2021 $ / shares shares | Jan. 31, 2021 director $ / shares shares | Mar. 31, 2022 USD ($) shares | Mar. 31, 2021 USD ($) | Dec. 31, 2021 $ / shares shares | Dec. 31, 2020 shares
Number of New Directors | director |  |  |  |  |  | 2 |  |  |  |
Director [Member] |  |  |  |  |  |  |  |  |  |
Amount payable to non-employee directors |  |  |  | $ 10,000 |  |  | $ 10,000 |  |  |
Fully-vested shares of common stock issued | shares |  |  |  |  |  |  | 1,000 |  |  |
2018 Equity Plan [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Maximum issuance of common stock options | shares |  |  |  | 325,000 |  |  | 325,000 |  |  |
2018 Equity Plan [Member] | Director [Member] |  |  |  |  |  |  |  |  |  |
Fully-vested shares of common stock issued | shares |  |  |  |  | 12,726 | 1,202 |  |  |  |
Fully vested shares of common stock issued, per share value | $ / shares |  |  |  |  | $ 18.50 | $ 16.66 |  |  |  |
Stock compensation expense |  |  |  |  |  |  | $ 58,858 | $ 70,216 |  |
Long-Term Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |
Stock compensation expense |  |  |  |  |  |  | $ 26,127,000 | $ 26,127,000 |  |
Restricted Stock Units (RSUs) [Member] | Officers [Member] | Share-based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |  |  |  |  |
Share-based compensation performance based award, percent |  |  |  |  |  |  | 50.00% |  |  |
Restricted Stock Units (RSUs) [Member] | Officers [Member] | Share-based Payment Arrangement, Tranche Two [Member] |  |  |  |  |  |  |  |  |  |
Share-based compensation performance based award, percent |  |  |  |  |  |  | 150.00% |  |  |
Restricted Stock Units (RSUs) [Member] | Long-Term Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |
Shares of common stock grant date fair market value | $ / shares |  |  |  | $ 21.88 | $ 17.93 |  |  |  | $ 12.54 |
Restricted Stock Units (RSUs) [Member] | Long-Term Incentive Plan [Member] | Year 2021 [Member] |  |  |  |  |  |  |  |  |  |
Stock compensation expense |  |  |  |  |  |  | $ 16,571 |  |  |
Unrecognized compensation expense related to unvested units |  |  |  | $ 138,093 |  |  | $ 138,093 |  |  |
Restricted Stock Units (RSUs) [Member] | Long-Term Incentive Plan [Member] | Share-based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |  |  |  |  |
Share-based compensation award vesting period |  |  | 3 years |  |  |  |  |  |  |
Restricted Stock Units (RSUs) [Member] | Long-Term Incentive Plan [Member] | Share-based Payment Arrangement, Tranche Two [Member] |  |  |  |  |  |  |  |  |  |
Share-based compensation award vesting period |  |  |  |  |  |  | 3 years |  |  |
Unvested Restricted Stock Units [Member] | Long-Term Incentive Plan [Member] | Year 2022 [Member] |  |  |  |  |  |  |  |  |  |
Unrecognized compensation expense related to unvested units |  |  |  | 313,743 |  |  | $ 313,743 |  |  |
Unvested Restricted Stock Units [Member] | Long-Term Incentive Plan [Member] | Year 2020 [Member] |  |  |  |  |  |  |  |  |  |
Unrecognized compensation expense related to unvested units |  |  |  | $ 63,584 |  |  | $ 63,584 |  |  |
Performance Vested Shares [Member] | Long-Term Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |
Share-based compensation shares of common stock granted | shares |  |  |  | 8,096 | 7,389 |  |  |  | 9,791 | 10,143
Time-vested Shares [Member] | Long-Term Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |
Share-based compensation shares of common stock granted | shares | 3,380 | 5,070 |  | 6,238 | 3,693 |  |  |  |  | 5,070
Shares-based compensation shares of common stock issued | shares | 1,688 | 1,690 |  |  |  |  |  |  |  |

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