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Stockholders Equity (Details Narrative) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Dividends declared |  |  | $ 1,274,797 | $ 1,530,390 |
Stock-based compensation expense related to stock options is net of estimated forfeitures, rate | 16.00% | 16.00% | 0.00% | 1.40% |
Weighted average estimated fair value of stock options granted per share |  |  |  | $ 2.40 |
Closing price per share | $ 6.64 |  | $ 6.64 |  |
Weighted-average vesting period | 7 months 17 days |  |  |  |
stock based compensation | $ 452,000 | $ 416,000 | $ 1,405,000 | $ 1,321,000 |
Stock-based compensation expense related to stock options is net of estimated forfeitures | 14,000 | $ 14,000 | 43,000 | $ 52,000 |
Estimated fair value of unamortized compensation cost related to unvested stock option awards | $ 21,000 |  | $ 21,000 |  |
Aggregate intrinsic value, Options Outstanding and Options Exercisable | $ 8.2 |  |  |  |
Average Intrinsic Value, Expired | $ 0 |  |  |  |
Common stock shares authorized | 20,000,000 |  | 20,000,000 |  | 20,000,000
Black - Scholes Option Pricing Model [Member] |  |  |  |  |
Dividend per share | $ 0.04 |  | $ 0.04 |  |
Plan 2014 Member |  |  |  |  |
Shares reserved for grants | 510,749 |  |  |  |
Plan 2014 Member | Board Of Directors [Member] |  |  |  |  |
Common stock shares authorized | 700,000 |  | 700,000 |  |
Plan 2014 Member | Maximum [Member] |  |  |  |  |
Common stock shares authorized | 750,000 |  | 750,000 |  |

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