Consolidated Statements of Cash Flows $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (11,815)	$ (46,322)	$ (50,797)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		902	1,692
Impairment charges		3,354	1,008
Provision for inventory reserve	4,100	1,729	0
Share-based compensation		2,676	(6,078)
Change in fair value of warrants	(53)	(74)	(326)
Change in fair value of contingent consideration		0	1,289
Deferred income taxes		5	3
Non-cash operating lease expense		1,457	1,261
Other non-cash operating activities		(47)	(1,489)
Changes in assets and liabilities:
Receivables, net		2,747	3,556
Inventories, net		227	(2,450)
Prepaid and other current assets		(453)	(605)
Trade payables and accrued liabilities		603	(1,789)
Contract liabilities		2,972	3,056
Change in contract loss provisions, net		(1,069)	(1,776)
Other non-current assets and liabilities		183	(1,477)
Net cash used in operating activities		(31,110)	(54,922)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures		(264)	(1,146)
Proceeds from sale of property, plant and equipment	400	847	0
Purchases of available-for-sale securities		0	(89,856)
Maturities of available-for-sale securities		12,500	161,600
Net cash provided by investing activities		13,083	70,598
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options		3	1,175
Proceeds from issuance of common stock under employee stock purchase plan		13	168
Payment related to taxes for net-share settlement of share-based compensation		(73)	0
Payment for fractional shares in connection with the reverse stock split		0	(7)
Net cash provided by (used in) financing activities		(57)	1,336
Increase (decrease) in cash, cash equivalents and restricted cash		(18,084)	17,012
Cash, cash equivalents and restricted cash at the beginning of the period		64,215	47,874
Cash, cash equivalents and restricted cash at the end of the period	46,131	46,131	64,886
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	44,631	44,631	63,386
Short-term restricted cash	500	500	500
Long-term restricted cash	1,000	1,000	1,000
Total cash, cash equivalents and restricted cash	$ 46,131	46,131	64,886
Non-cash investing and financing activities:
Fair value of Project Warrants and Collaboration Warrants recognized in equity		135	234
Capital expenditures incurred but not yet paid		$ 0	$ 83