Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (10,544)	$ (58,968)	$ (142,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	601	760
Impairment charges	1,008	0
Share-based compensation	(9,306)	12,982
Change in fair value of warrants	(304)	(4,026)
Change in fair value of contingent consideration	1,125	14
Deferred income taxes	0	(611)
Non-cash operating lease expense	400	428
Other non-cash operating activities	(570)	101
Changes in assets and liabilities:
Receivables	(1,497)	(9,693)
Inventories	(458)	0
Prepaid and other current assets	(1,786)	(3,802)
Trade payables and accrued liabilities	(3,084)	456
Contract liabilities	705	6,811
Provision for contract losses, net	(77)	33,766
Other non-current assets and liabilities	(345)	(891)
Net cash used in operating activities	(24,132)	(22,673)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(527)	(1,360)
Purchases of available-for-sale securities	(44,520)	(122,468)
Maturities of available-for-sale securities	62,300	21,100
Net cash provided by (used in) investing activities	17,253	(102,728)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	248	209
Other financing costs	0	(1,274)
Net cash provided by (used in) financing activities	248	(1,065)
Decrease in cash, cash equivalents and restricted cash	(6,631)	(126,466)
Cash, cash equivalents and restricted cash at the beginning of the period	47,874	191,581	191,581
Cash, cash equivalents and restricted cash at the end of the period	41,243	65,115	47,874
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	39,215	63,615	45,719
Short-term restricted cash	528	0	655
Long-term restricted cash	1,500	1,500	1,500
Total cash, cash equivalents and restricted cash	41,243	65,115	$ 47,874
Non-cash investing and financing activities:
Fair value of Project Warrants and Collaboration Warrants recognized in equity	76	9,339
Capital expenditures incurred but not yet paid	$ 56	$ 19