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Stockholders Equity (Details Narrative) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 15, 2022	Dec. 31, 2021	Aug. 05, 2020
Dividends declared	$ 851,266	$ 854,272
Stock based compensation for stock options	2,000	14,000
Share-based compensation under offering	5,000	0
Stock based compensation for grants	479,000	472,000
Stock-based compensation expense	$ 8,000	29,000
Shares reserved for grants	352,066
Weighted-average vesting period	2 months 26 days
Fair value of unamortized compensation cost	$ 2,000
Maximum share purchase under ESPP	750,000
Maximum share purchased by employee	5,000
Closing price of common stock	$ 3.94
Common stock shares authorized	20,000,000			20,000,000
Grant [Member]
Stock-based compensation expense	$ 998,000	952,000
2021/2022 Offering [Member]
Stock-based compensation expense	$ 11,000	$ 0
Board Of Directors [Member] | February 2, 2022 [Member]
Dividend per share			$ 0.04
Held-to-Maturity Securities US Treasury Securities [Member]
Common stock shares authorized	700,000				1,400,000

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