Convertible Promissory Note (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Total in Other Current Assets, beginning balance	$ 0	$ 0
Fair Value Adjustments to the note		(94,000)	$ 0	$ 0
Estimated Credit Loss		(758,000)	0	$ 0
Embedded Derivative, ending balance		962,000
Total in Other Current Assets, ending balance		5,312,000	0
Convertible Promissory Note
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale	$ 5,000,000
Stated interest rate	8.00%
Credit agreement, term	18 months
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Fair value of the note, beginning balance	$ 5,000,000	5,000,000
Discount on the note, beginning balance	(276,000)	(276,000)
Estimated Credit Loss, beginning balance	0	0
Convertible Promissory Note, net, beginning balance	4,724,000	4,724,000
Embedded Derivative, beginning balance	276,000	276,000
Interest Receivable, beginning balance	0	0
Total in Other Current Assets, beginning balance	$ 5,000,000	5,000,000
Fair Value Adjustments to the note		(94,000)
Accretion of Discount		149,000
Estimated Credit Loss		(758,000)
Interest Income		329,000
Fair Value Adjustment to Embedded Derivative		686,000
Fair value of the note, ending balance		4,906,000	5,000,000
Discount on the note, ending balance		(127,000)	(276,000)
Estimated Credit Loss, ending balance		(758,000)	0
Convertible Promissory Note, net, ending balance		4,021,000	4,724,000
Embedded Derivative, ending balance		962,000	276,000
Interest Receivable, ending balance		329,000	0
Total in Other Current Assets, ending balance		$ 5,312,000	$ 5,000,000