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Employee Stock Compensation Plans (Details Narrative) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 20, 2023	Dec. 31, 2022	Jun. 18, 2013
Unrecognized Stock Option Compensation Cost Related To Non-vested Options	$ 492,000		$ 492,000
Unrecognized Stock Option Compensation Cost Related To Non-vested Options, Period Of Recognition				26 months
Stock options exercised for cash			14,000	$ 20,000
General and Administrative Expense [Member]
Stock option expense	$ 59,000	$ 13,000	$ 126,000	$ 26,000
2013 Plan [Member]
Options outstanding, exercisable	5,340,000		5,340,000			5,390,000
Stock Option Exercised In Period, Shares	50,000	8,750	50,000	81,750
Common stock, capital shares reserved for future issuance					5,000,000		5,750,000
Stock options exercised for cash	$ 14,000	$ 1,000	$ 14,000	$ 20,000
Intrinsic value	$ 15,000	$ 5,000	$ 15,000	$ 44,000
Exercise price Per Share	$ 0.28	$ 0.20	$ 0.28	$ 0.25
2013 Plan [Member] | Minimum [Member]
Exercise price	0.20		0.20
2013 Plan [Member] | Maximum [Member]
Exercise price	$ 0.60		$ 0.60

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