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Stockholders Equity (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Mar. 15, 2022	Aug. 05, 2020
Dividends declared	$ 1,694,148	$ 1,957,142
Stock based compensation for stock options	55,000	68,000
Share-based compensation under offering	4,000	0
Stock based compensation for grants	$ 1,846,000	$ 1,703,000
Weighted-average vesting period	6 months
Closing price of common stock		$ 1.66
Stock option net forfeited	$ 0
Fair value of unamortized compensation cost	$ 9,000
Maximum share purchase under ESPP	750,000
Maximum share purchased by employee	5,000
Stock-based compensation	$ 1,904,935	$ 1,769,649
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
Shares reserved	440,774
Board Of Directors [Member] | February 2, 2022 [Member] | Subsequent Event [Member]
Dividend per share			$ 0.04

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