Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 17,478	$ 7,578
Short-term investments	27,280	55,277
Receivables
Trade, less allowance for credit losses of $0 and $184 as of March 31, 2024 and December 31, 2023	872	902
Other	290	673
Prepaid expenses and other	3,626	4,325
Total current assets	49,546	68,755
Property, plant and equipment, net	12,620	7,111
Intangible assets, net	38,717	40,701
Goodwill	26,555	26,612
Right-of-use assets	6,658	7,097
Other assets	751	767
Total assets	134,847	151,043
Current liabilities
Accounts payable	4,716	1,726
Accrued compensation and benefits	9,962	8,250
Other accrued liabilities	7,296	6,223
Settlement and indemnification accruals	5,075	5,075
Deferred revenue	407	509
Current portion of lease liabilities	1,318	1,202
Total current liabilities	28,774	22,985
Deferred revenue, net of current portion	1,888	1,818
Lease liabilities, net of current portion	5,387	5,895
Deferred tax liabilities	1,779	1,847
Total liabilities	37,828	32,545
Commitments and contingencies (Note 13)
Shareholders' equity
Common stock, no par value, 400,000,000 shares authorized as of March 31, 2024 and December 31, 2023; 256,398,527 shares issued as of March 31, 2024 and December 31, 2023, $250,248,808 shares and $248,919,096 shares outstanding as of March 31, 2024 and December 31, 2023, respectively.	0	0
Additional paid-in capital	2,088,025	2,084,916
Accumulated deficit	(1,988,209)	(1,964,471)
Accumulated other comprehensive loss	(2,797)	(1,947)
Total shareholders' equity	97,019	118,498
Total liabilities and shareholders' equity	$ 134,847	$ 151,043