Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Cash Flows from Operating Activities:
Net loss	$ (4,273,000)	$ (2,537,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	112,000	101,000
Depreciation	18,000	33,000
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	390,000	(42,000)
Right of use asset	45,000	39,000
Accounts payable	13,000	(265,000)
Accrued expenses	(513,000)	(71,000)
Accrued employee benefits	(645,000)	(518,000)
Operating lease liability	(49,000)	(68,000)
Net Cash Used in Operating Activities	(4,902,000)	(3,328,000)
Cash Flows from Investing Activities
Purchases of property and equipment	0	(14,000)
Cash paid for business combination, net of cash acquired	(3,863,000)	0
Pre-acquisition loan to VCN	(417,000)	0
Net Cash Used in Investing Activities	(4,280,000)	(14,000)
Cash Flows from Financing Activities
Payment of VCN's CDTI loan	(1,376,000)
Proceeds from "at the market" stock issuance	0	65,960,000
Proceeds from issuance of common stock for warrant exercises	0	8,042,000
Net Cash Provided by Financing Activities	(1,376,000)	74,002,000
Effects of FX on cash	28,000	0
Net increase (decrease) in cash and cash equivalents and restricted cash	(10,530,000)	70,660,000
Cash and cash equivalents and restricted at the beginning of this period	67,325,000	6,227,000	$ 6,227,000
Cash and cash equivalents and restricted cash at the end of this period	56,795,000	76,887,000	67,325,000
Reconciliation of cash, cash equivalents, and restricted cash reported in the statement of financial position
Cash and cash equivalents	56,692,000	76,887,000	67,325,000
Restricted cash included in other long-term assets	103,000	0
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows	56,795,000	76,887,000	67,325,000
Supplemental non-cash investing and financing activities:
Fair value of contingent consideration in a business combination	12,158,000	0
Fair value of equity issued as consideration in a business combination	6,599,000	0
Effective settlement of pre-closing VCN financing	417,000	0
Effect of Series A Preferred Stock price adjustment	0	7,402,000
Conversion of Series B Preferred Stock	0	2,477,000
Deemed dividends for accretion of Series B Preferred Stock discount	0	1,497,000
In-kind dividends paid in preferred stock	0	23,000
Right of use assets from operating lease	1,300,000
Effect of Warrant exercise price adjustment			$ 880,000
Series A Preferred Stock [Member]
Supplemental non-cash investing and financing activities:
Effect of Series A Preferred Stock price adjustment	$ 0	$ 7,402,000