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Equity Compensation Plan Information (Narrative) (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 26, 2021 | Mar. 26, 2020 | May 31, 2021 | Jul. 31, 2020 | Jun. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Director [Member] |  |  |  |  |  |  |  |  |
Amount payable to non-employee directors |  |  |  |  |  | $ 10,000 |  | $ 10,000 |
2018 Equity Plan [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Maximum issuance of common stock options |  |  |  |  |  | 325,000 |  | 325,000 |
2018 Equity Plan [Member] | Director [Member] |  |  |  |  |  |  |  |  |
Fully-vested shares of common stock issued |  |  | 12,726 | 916 | 13,160 |  |  |  |
Fully vested shares of common stock issued, per share value |  |  | $ 18.50 | $ 11.22 | $ 14.52 |  |  |  |
Stock compensation expense |  |  |  |  |  | $ 58,857 | $ 52,114 | $ 191,717 | $ 158,795
Long-Term Incentive Plan [Member] |  |  |  |  |  |  |  |  |
Stock compensation expense |  |  |  |  |  | 26,127 | $ 31,243 | $ 78,381 | $ 93,727
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 |  |  | $ 17.93 |  |  |  |  |  | $ 12.54
Stock compensation expense |  |  |  |  |  | 16,571 |  | $ 27,619 |
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 |
Performance Vested Shares [Member] | Long-Term Incentive Plan [Member] |  |  |  |  |  |  |  |  |
Share-based compensation shares of common stock granted |  |  | 7,389 |  |  |  |  |  | 19,934
Time-vested Shares [Member] | Long-Term Incentive Plan [Member] |  |  |  |  |  |  |  |  |
Share-based compensation shares of common stock granted |  |  | 3,693 |  |  |  |  |  | 5,070
Shares-based compensation shares of common stock issued | 1,690 |  |  |  |  |  |  |  |
Unvested Restricted Stock Units [Member] | Long-Term Incentive Plan [Member] | Year 2020 [Member] |  |  |  |  |  |  |  |  |
Unrecognized compensation expense related to unvested units |  |  |  |  |  | 110,173 |  | $ 110,173 |
Unvested Restricted Stock Units [Member] | Long-Term Incentive Plan [Member] | Year 2021 [Member] |  |  |  |  |  |  |  |  |
Unrecognized compensation expense related to unvested units |  |  |  |  |  | $ 171,235 |  | $ 171,235 |

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