Net Loss Per Share (Details) - Schedule of options and warrants would be antidilutive - shares shares in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Schedule of options and warrants would be antidilutive [Abstract]
Common Stock subject to outstanding options	1,338	1,338
Common Stock subject to outstanding warrants	1,450	3,001
Common stock subject to outstanding convertible debt plus accrued interest	7,290	6,608