Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net loss - before noncontrolling interest (“NCI”)	$ (22,214)	$ (19,633)
Adjustments to reconcile net loss - before NCI to net cash used in operating activities
Depreciation and amortization expense	727	216
Stock-based compensation	4,419	4,814
Gain on sale of intellectual property	(1,000)
APA-RDx: Issue common stock of majority-owned subsidiary - settle termination payment	713
Change in fair value - Senior Secured Convertible Notes	1,040
Loss on issue and offering costs - Senior Secured Convertible Note	1,186
Debt extinguishment loss - Senior Secured Convertible Note	525
Non-cash lease expense	79	29
Changes in operating assets and liabilities:
Accounts receivable	(10)	111
Prepaid expenses, deposits and current and other assets	(326)	(134)
Accounts payable	(1,444)	3,922
Accrued expenses and other current liabilities	18	(1,588)
Net cash flows used in operating activities	(16,287)	(12,263)
Cash flows from investing activities
Purchase of equipment	(26)	(574)
Proceeds from sale of intellectual property	1,000
Net cash flows used in investing activities	974	(574)
Cash flows from financing activities
Proceeds – issue of preferred stock - majority-owned subsidiary	13,625
Proceeds – issue of Senior Secured Convertible Note, net of offering costs	9,925
Proceeds – issue of common stock - At-The-Market Facility	557
Proceeds – majority-owned subsidiary common stock - At-The-Market Facility	284
Proceeds – exercise of stock options		241
Proceeds – issue common stock – Employee Stock Purchase Plan	182	217
Proceeds – majority-owned subsidiary common stock – Employee Stock Purchase Plan	276	187
Purchase Treasury Stock – payment of employee payroll tax obligation in connection with stock-based compensation		(329)
Net cash flows provided by financing activities	24,849	316
Net increase (decrease) in cash	9,536	(12,521)
Cash, beginning of period	39,744	77,258
Cash, end of period	$ 49,280	$ 64,737