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CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Assets    
Cash and cash equivalents $ 31,176 $ 72,291
Marketable securities 68,328 49,608
Accounts receivable 3,454 3,363
Inventories 5,984 5,787
Other current assets 13,149 22,476
Total current assets 122,091 153,525
Operating lease right-of-use assets 4,919 5,480
Property, plant and equipment, net 13,244 12,845
Intangible assets, net 600 825
Other noncurrent assets 6,446 7,026
Total assets 147,300 179,701
Liabilities and stockholders' equity    
Accounts payable 4,613 5,885
Accrued liabilities 11,944 12,063
Accrued employee costs 7,846 13,945
Lease liability, current portion 1,425 1,488
Other current liabilities 3,989 2,488
Total current liabilities 29,817 35,869
Lease liability, noncurrent portion 3,838 4,213
Convertible Notes Payable 96,793 96,693
Warrant liability 29,261 29,711
Total liabilities 159,709 166,486
Commitments and contingencies (Note 15)
Convertible preferred stock $0.0001 par value; 10,000 shares authorized; no,shares issued and outstanding 0 0
Stockholders' Deficit    
Common stock $0.0001 par value; 422,000 shares authorized; 60,008 and 54,140 shares issued and outstanding at September 30, 2025 and December 31, 2024, respectively 6 6
Additional paid-in capital 779,883 770,502
Accumulated other comprehensive gain (loss) (30) (4)
Accumulated deficit (792,268) (757,289)
Total stockholders' equity (12,409) 13,215
Total liabilities and stockholders' equity $ 147,300 $ 179,701