Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities
Net loss - before noncontrolling interest (“NCI”)	$ (40,106)	$ (48,734)
Adjustments to reconcile net loss - before NCI to net cash used in operating activities
Depreciation and amortization expense	1,474	1,031
Stock-based compensation	6,926	9,820
Gain on sale of intellectual property	(1,000)
APA-RDx: Issue common stock of majority-owned subsidiary - settle termination payment	713	239
Issue common stock - vendor service agreement	625
Change in fair value - Senior Secured Convertible Notes	1,380	2,000
Loss on issue - Senior Secured Convertible Note	1,111	2,500
Debt extinguishment loss - Senior Secured Convertible Note	1,268
Change in fair value - derivative liability	260
Non-cash lease expense	192	57
Changes in operating assets and liabilities:
Accounts receivable	(24)	200
Prepaid expenses, deposits and current and other assets	(1,592)	(1,665)
Accounts payable	(1,541)	1,057
Accrued expenses and other current liabilities	1,241	(1,326)
Net cash flows used in operating activities	(29,073)	(34,821)
Cash flows from investing activities
Purchase of equipment	(41)	(926)
Proceeds from sale of intellectual property	1,000
Asset acquisitions		(2,200)
Net cash flows used in investing activities	959	(3,126)
Cash flows from financing activities
Proceeds – issue of preferred stock - majority-owned subsidiary	13,625
Proceeds – issue of Senior Secured Convertible Note	10,000	25,000
Proceeds – issue of common stock - At-The-Market Facility	1,166
Proceeds – majority-owned subsidiary common stock - At-The-Market Facility	284
Proceeds – exercise of stock options		303
Proceeds – issue common stock – Employee Stock Purchase Plan	182	217
Proceeds – majority-owned subsidiary common stock – Employee Stock Purchase Plan	276
Proceeds – exercise of stock options issued under equity plan of majority owned subsidiary		688
Purchase Treasury Stock – payment of employee payroll tax obligation in connection with stock-based compensation		(366)
Net cash flows provided by financing activities	25,533	25,842
Net increase (decrease) in cash	(2,581)	(12,105)
Cash, beginning of period	39,744	77,258
Cash, end of period	$ 37,163	$ 65,153