8. Stockholders' Equity (Details Narrative) - USD ($)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Dividends declared	$ 675,960	$ 1,075,962
Stock-based compensation expense related to stock options is net of estimated forfeitures	$ 17,000	1,000
Closing price of common stock	$ 5.11
Total intrinsic value of options exercised	$ 0
Stock-based compensation, restricted stock awards	$ 472,000	$ 309,000
2014 Plan
Shares reserved	66,600

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