Basis of Preparation (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Long-term Assets [Abstract]
Operating lease right-of-use asset	$ 49,000	$ 86,000	$ 59,000
Total leased assets	49,000	86,000
Current Liabilities [Abstract]
Operating lease right-of-use liability - current portion	44,000	40,000	43,000
Long-term Liabilities [Abstract]
Operating lease right-of-use liability - net of current portion	12,000	56,000	$ 23,000
Total lease liabilities	56,000	96,000
Lease Cost [Abstract]
Net lease expense	10,000	5,000
Operating lease [Abstract]
2022	33,000
2023	25,000
Total	58,000
Less amount representing interest	2,000
Present value of lease liabilities	$ 56,000
Discount rate	5.85%
Selling, General and Administrative Expenses [Member]
Lease Cost [Abstract]
Operating lease cost	$ 10,000	11,000
Interest Expense [Member]
Lease Cost [Abstract]
Finance lease cost, interest on lease liabilities	0	2,000
Interest Income - Sales-type Sublease [Member]
Lease Cost [Abstract]
Sublease income	$ 0	$ 8,000