Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flow from operating activities:
Net income (loss)	$ (196,295)	$ 14,192
Adjustments to reconcile net (loss) income to net cash used in operations:
Depreciation and amortization	9,324	9,436
Non cash lease expense	(13)	(59)
Deferred income taxes		(1)
Provision for doubtful accounts	1,233	1,877
Provision for inventory obsolescence	1,328
Change in fair value of warrant liabilities	(6,164)	(42,109)
Inventory impairment	5,384	904
Goodwill impairment	112,347	3,610
IPR&D impairment	107,800
Stock-based compensation expense	15,017	15,856
Change in fair value of contingent consideration	(104,339)	(126,277)
Acquired in-process research and development	3,000
Issuance of common stock for stem-cells to be used in research and development	1,000
Issuance of common stock relating to Yorkville debt extension	712
Discounts arising from RWI loan arrangement - related party	2,151
Fair value of warrant modification for professional services	403
Change in fair value of debt	1,177	2,522
Change in fair value of contingent stock consideration	(159)	186
Other, net	4,157	(37)
Changes in assets and liabilities:
Accounts receivable	(6,827)	(3,584)
Inventory	(865)	(16,891)
Prepaid expenses and other assets	5,606	49
Accounts payable	8,497	(2,948)
Accrued expenses and other liabilities	(1,128)	(2,623)
Accrued R&D software	(3,834)	7,333
Right-of-use assets and lease liabilities	275	263
Deferred revenue	1,528	425
Net cash used in operating activities	(38,685)	(137,876)
Cash flow from investing activities:
Capital expenditures	(1,048)	(5,236)
Purchase of acquired in-process research and development	(3,000)
Net cash used in investing activities	(4,048)	(5,236)
Cash flow from financing activities:
Proceeds from RWI senior secured bridge loan and warrants - related party	12,375	46,491
Principal payments of Yorkville short-term debt	(16,811)
Proceeds from issuance of senior secured C.V. Starr bridge loan and warrants - related party	4,994
Proceeds from short-term debt		39,200
Proceeds from the sale of common stock in ATM offering	136	6,519
Payments of ATM offering costs and commissions		(498)
Proceeds from other short-term debt	2,000
Proceeds from other short-term debt - related party	1,000
Proceeds from PIPE financings	12,750	30,000
Proceeds from the exercise of stock options	304	862
Tax withholding on vesting of restricted stock units	(101)	(132)
Proceeds from registered direct offerings	9,000
Payments of PIPE and other issuance costs	(1,553)	(2,604)
Net cash provided by financing activities	24,094	119,838
Net decrease in cash, cash equivalents and restricted cash	(18,639)	(23,274)
Cash, cash equivalents and restricted cash at beginning of year	28,802	52,076
Cash, cash equivalents and restricted cash at end of year	10,163	28,802
Supplemental disclosure of cash flow information:
Cash paid for interest	1,073
Supplemental non-cash investing and financing activities:
Property and equipment included in accounts payable and accrued expenses	(223)	(683)
Common stock issued for short-term debt conversion	4,599	4,099
Issuance of warrants on senior secured bridge loans	2,002
Reduction of right-of-use assets and associated lease liability due to lease modification	(2,083)
PIPE related costs included in accrued expenses	(69)
Interest accrued on senior secured loans within long-term debt - related parties	$ (1,770)
Reclassification of option liabilities to equity		$ 441