Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 10,076,000	$ 4,858,000
Restricted cash	0	43,339,000
Short-term investments	63,679,000	51,092,000
Receivables
Trade, less allowance for credit losses of $184 as of both September 30, 2023 and December 31, 2022	988,000	978,000
Other	13,117,000	12,826,000
Prepaid expenses and other	5,128,000	5,066,000
Total current assets	92,988,000	118,159,000
Long-term investments	5,271,000	0
Property, plant and equipment, net	7,115,000	7,329,000
Intangible assets, net	40,426,000	44,455,000
Goodwill	36,894,000	36,923,000
Right-of-use assets	7,197,000	8,086,000
Other assets	797,000	1,025,000
Total assets	190,688,000	215,977,000
Current liabilities
Accounts payable	2,351,000	4,068,000
Accrued compensation and benefits	6,621,000	6,377,000
Other accrued liabilities	4,119,000	4,997,000
Settlement and indemnification accruals	18,075,000	18,750,000
Deferred revenue	509,000	25,000
Current portion of long-term debt	0	43,219,000
Current portion of lease liabilities	1,200,000	1,209,000
Total current liabilities	32,875,000	78,645,000
Deferred revenue, net of current portion	1,818,000	1,818,000
Lease liabilities, net of current portion	6,192,000	6,992,000
Deferred tax liabilities	2,125,000	2,263,000
Total liabilities	43,010,000	89,718,000
Commitments and contingencies (Note 14)
Shareholders' equity
Common stock, no par value, 400,000,000 shares authorized as of September 30, 2023 and December 31, 2022; 256,398,527 shares and 208,150,021 shares issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	0	0
Additional paid-in capital	2,082,654,000	1,998,314,000
Accumulated deficit	(1,931,415,000)	(1,868,567,000)
Accumulated other comprehensive loss	(3,561,000)	(3,488,000)
Total shareholders' equity	147,678,000	126,259,000
Total liabilities and shareholders' equity	$ 190,688,000	$ 215,977,000