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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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