Stockholders' Deficit and Loss Per Share (Details) - Calculation of loss per share - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net loss, as reported	$ (999,000)	$ (758,000)	$ (2,795,000)	$ (3,154,000)
Denominator:
Weighted average shares outstanding	13,446,000	13,696,000	13,595,000	13,696,000
Basic and diluted loss per share	$ (0.07)	$ (0.06)	$ (0.21)	$ (0.23)