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Condensed Consolidated Balance Sheets - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Current assets    
Cash and cash equivalents $ 7,480,000 $ 30,234,000
Short-term investments 48,766,000 67,624,000
Receivables    
Trade, less allowance for credit losses of $0 as of both March 31, 2026 and December 31, 2025 26,403,000 3,916,000
Other 302,000 446,000
Inventory 14,725,000 9,581,000
Prepaid expenses and other 3,996,000 3,434,000
Total current assets 101,672,000 115,235,000
Long-term investments 489,000 2,511,000
Property, plant and equipment, net 13,219,000 13,758,000
Intangible assets, net 2,864,000 3,182,000
Goodwill 15,232,000 15,232,000
Right-of-use assets 4,369,000 4,679,000
Other assets 782,000 908,000
Total assets 138,627,000 155,505,000
Current liabilities    
Accounts payable 2,589,000 11,985,000
Accrued compensation and benefits 4,556,000 10,199,000
Other accrued liabilities 12,481,000 10,993,000
Indemnification accruals 0 2,476,000
Deferred revenue 410,000 517,000
Current portion of lease liabilities 1,068,000 1,136,000
Total current liabilities 21,104,000 37,306,000
Long-term debt 93,519,000 93,174,000
Lease liabilities, net of current portion 3,663,000 3,980,000
Other long-term liabilities 106,000 134,000
Total liabilities 118,392,000 134,594,000
Commitments and contingencies (Note 14)
Shareholders' equity    
Common stock, no par value, 700,000,000 shares authorized as of March 31, 2026 and December 31, 2025; 355,903,977 shares and 353,910,926 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively. 0 0
Additional paid-in capital 2,369,529,000 2,362,252,000
Accumulated deficit (2,349,277,000) (2,341,348,000)
Accumulated other comprehensive (loss) income (17,000) 7,000
Total shareholders' equity 20,235,000 20,911,000
Total liabilities and shareholders' equity $ 138,627,000 $ 155,505,000