Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 51,792	$ 65,793
Short-term investments	48,325	9,260
Receivables
Trade, less allowance for credit losses of $4,825 and $5,201 as of December 31, 2020 and 2019, respectively	16,487	20,650
Related parties, less allowance for credit losses of $1,509 and $2,312 as of December 31, 2020 and 2019, respectively	19	600
Notes	3,689	2,942
Other	232	2,030
Inventory	11,359	16,097
Prepaid expenses and other	7,192	5,827
Current assets held for sale or abandonment	9,853	111,444
Total current assets	148,948	234,643
Property, plant and equipment, net	34,924	43,952
Intangible assets, net	65,396	68,346
Goodwill	54,363	54,119
Investments in affiliates	0	1,461
Right-of-use assets	9,353	11,803
Other assets	1,603	1,349
Noncurrent assets held for sale or abandonment	0	40,090
Total assets	314,587	455,763
Current liabilities
Accounts payable	4,598	5,528
Accrued compensation and benefits	8,097	13,198
Other accrued liabilities	9,549	11,674
Deferred revenue, including $0 and $877 from related parties as of December 31, 2020 and 2019, respectively	2,800	5,697
Lines of credit	0	1,922
Current portion of long-term debt, including $0 and $31,211 to related parties as of December 31, 2020 and 2019, respectively	360	31,670
Current portion of lease liabilities	2,657	2,634
Related party payables	19	51
Current liabilities held for sale or abandonment	14,047	50,538
Total current liabilities	42,127	122,912
Long-term debt, net of current portion, including $0 and $25,000 to related parties as of December 31, 2020 and 2019, respectively	171,522	186,321
Deferred revenue, net of current portion, including $21,205 and $30,182 from related parties as of December 31, 2020 and 2019, respectively	23,023	48,136
Lease liabilities, net of current portion	7,744	10,119
Deferred tax liabilities	2,897	2,834
Other long-term liabilities	100	0
Long-term liabilities held for sale or abandonment	0	13,730
Total liabilities	247,413	384,052
Commitments and Contingencies
Shareholders' equity
Common stock, no par value, 400,000,000 shares authorized as of December 31, 2020 and 2019; and 187,663,207 shares and 163,274,880 shares issued and outstanding as of December 31, 2020 and 2019, respectively	0	0
Additional paid-in capital	1,886,567	1,752,048
Accumulated deficit	(1,823,390)	(1,652,869)
Accumulated other comprehensive income (loss)	3,997	(27,468)
Total shareholders' equity	67,174	71,711
Total liabilities and shareholders' equity	$ 314,587	$ 455,763

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.