Condensed Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash Flows From Operating Activities:
Net loss	$ (9,241,000)	$ (5,732,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	225,000	203,000
Change in fair value of contingent consideration	(483,000)	0
Depreciation	36,000	56,000
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	518,000	366,000
Right of use asset	90,000	81,000
Accounts payable	(295,000)	(318,000)
Accrued expenses	265,000	(131,000)
Accrued employee benefits	(272,000)	(328,000)
Lease liability	(101,000)	(121,000)
Net Cash Used In Operating Activities	(9,258,000)	(5,924,000)
Cash Flows from Investing Activities
Purchase of property and equipment	(14,000)	(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	(4,294,000)	(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 (used in) by Financing Activities	(1,376,000)	74,002,000
Effects of FX on cash	(35,000)	0
Net increase (decrease) in cash and cash equivalents and restricted cash	(14,963,000)	68,064,000
Cash and cash equivalents and restricted at the beginning of this period	67,325,000	6,227,000
Cash and cash equivalents and restricted cash at the end of this period	52,362,000	74,291,000
Reconciliation of cash, cash equivalents, and restricted cash reported in the statement of financial position
Cash and cash equivalents	52,266,000	74,291,000
Restricted cash included in other long-term assets	96,000	0
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows	52,362,000	74,291,000
Supplemental non-cash investing and financing activities:
Fair value of contingent consideration issued 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
Goodwill measurement period adjustment	277,000	0
Effect of Series A Preferred Stock price adjustment	0	7,402,000
Right of use asset from operating lease	0	1,270,000
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