Stockholders' Deficit and Loss Per Share (Details) - Calculation of loss per share - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net loss, as reported	$ (1,175,000)	$ (1,353,000)	$ (1,796,000)	$ (2,396,000)
Denominator:
Weighted average shares outstanding	13,643,000	13,696,000	13,670,000	13,696,000
Basic and diluted loss per share	$ (0.09)	$ (0.10)	$ (0.13)	$ (0.17)