Liability Related to the Sale of Future Proceeds from Disposition of Subsidiary (Details) - Schedule of activity within the liability account - Subsidiary [Member] - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Liability Related to the Sale of Future Proceeds from Disposition of Subsidiary (Details) - Schedule of activity within the liability account [Line Items]
Liabilities related to sale of future proceeds from disposition of subsidiaries - beginning balance	$ 322,000	$ 602,000
Non-Cash other income recognized	(104,000)	(402,000)
Non-Cash interest expense recognized	31,000	122,000
Liabilities related to sale of future proceeds from disposition of subsidiary - ending balance	249,000	322,000
Less: unamortized transaction costs	(3,000)	(3,000)
Liability related to sale of future proceeds from disposition of subsidiary, net	$ 246,000	$ 319,000