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Stockholders Equity (Details Narrative) - USD ($) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021 | Aug. 05, 2020
Dividends declared | $ 1,277,066 | $ 1,274,797 |  |
Stock based compensation for stock options |  | 14,000 |  |
Share-based compensation under offering | 16,000 | 0 |  |
Stock based compensation for grants | 186,000 | 452,000 |  |
Stock-based compensation expense | $ 9,000 | 43,000 |  |
Shares reserved for grants | 364,271 |  |  |
Fair value of unamortized compensation cost | $ 2,000 |  |  |
Maximum share purchase under ESPP | 750,000 |  |  |
Maximum share purchased by employee | 5,000 |  |  |
Common stock shares authorized | 20,000,000 |  | 20,000,000 |
Held-to-Maturity Securities US Treasury Securities [Member] |  |  |  |
Common stock shares authorized | 700,000 |  |  | 1,400,000
Grant [Member] |  |  |  |
Stock-based compensation expense | $ 1,180,000 | 1,405,000 |  |
2021/2022 Offering [Member] |  |  |  |
Stock-based compensation expense | $ 5,000 | $ 0 |  |

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