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	$ (67,976)	$ (13,943)
Adjustments to reconcile net loss to net cash used in operating activities:
Non-cash restructuring and impairment	0	2,943
Loss on impairment of goodwill	60,934	0
Depreciation and amortization expense	1,038	322
Stock-based compensation	1,220	291
Change in fair value of royalties payable	(4,617)	0
Loss on disposals of property and equipment	0	44
Changes in operating assets and liabilities:
Accounts receivable	(48)	4
Inventories	7	57
Prepaid expense and other current assets	680	(502)
Operating Rright-of-use assets and operating lease liabilities	4	0
Accounts payable	(921)	(501)
Accrued expenses	(7,010)	(3,039)
Interest payable	(198)	0
Other liabilities	0	(139)
Net cash used in operating activities	(16,900)	(14,577)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(57)	0
Cash acquired as part of business combination	15	0
Net cash used in investing operations	(42)	0
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock and warrants	238	12,670
Payments of offering costs related to the issuance of common stock and warrants	0	2,040
Proceeds from exercise of warrants	1,326	25
Proceeds from issuance of common stock in connection with the employee stock purchase plan	0	5
Payments of cost related to the warrant repricing	(181)	0
Payments of convertible promissory notes and accrued interest	(250)	0
Proceeds from the private placement of securities	8,000	0
Payments of offering costs related to the private placement of securities	640	0
Net cash provided by financing activities	8,493	10,660
NET CHANGE IN CASH AND CASH EQUIVALENTS	(8,449)	(3,917)
CASH AND CASH EQUIVALENTS, beginning of period	15,859	15,045
CASH AND CASH EQUIVALENTS, end of period	7,410	11,128
SUPPLEMENTAL CASH FLOW INFORMATION
Unpaid offering costs	0	890
Non-cash consideration for Catheter acquisition (Note 3)	72,544	0
Cash payments for interest	$ 198	$ 0