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Shareholders' Equity - Performance Stock Units (Details) - Performance stock units - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Share Compensation Plan |  |  |
Stock based compensation expense | $ 244,087 | $ 401,835 |
Compensation cost not yet recognized | $ 63,328 | $ 310,790 |
Weighted average period for recognition | 7 months 17 days | 1 year 3 days |
Number outstanding |  |  |
Balance non-vested Restricted Stock at beginning of period (in shares) | 151,500 | 193,167 |
Granted (in shares) | 0 | 20,834 |
Vested (in shares) | (135,667) | (62,501) |
Balance non-vested Restricted Stock at end of period (in shares) | 15,833 | 151,500 | 193,167
Weighted Average Remaining Life |  |  |
Granted (in years) |  | 5 years 14 days |
Balance non-vested Restricted Stock at end of period (in years) | 1 year | 3 years 10 months 2 days | 1 year 7 months 6 days

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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