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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 1,572 $ 2,118
Accounts receivable 879 0
Insurance receivable 408 100
Prepaids and other current assets 1,667 8,513
Total current assets 4,526 10,731
Property, machinery and equipment, net 2,182 3,252
Intangible assets, net 253 341
Operating right-of-use asset 347 5,350
Restricted cash, non-current 0 373
Other non-current assets 2,644 602
Total assets 9,952 20,649
Current liabilities:    
Accounts payable 5,596 2,805
Accrued liabilities 3,006 4,754
Loan payable, current 4,957 2,273
Contract liabilities, current 345 0
Operating lease liability, current 685 1,268
Litigation settlement contingency 420 0
Other current liabilities 1 9
Total current liabilities 15,010 11,109
Contract liabilities, non-current 1,901 998
Warrant liability 3 3
Operating lease liability, non-current 333 4,863
Other non-current liabilities 515 489
Total non-current liabilities 2,752 6,353
Total liabilities 17,762 17,462
Commitments and Contingencies (Note 12)
Stockholders’ equity (deficit):    
Preferred stock, $0.00001 par value; 20,000,000 shares authorized and 0 issued and outstanding as of December 31, 2024 and 2023, respectively 0 0
Additional paid-in capital 400,183 376,234
Accumulated deficit (407,993) (373,047)
Total stockholders’ equity (deficit) (7,810) 3,187
Total liabilities and stockholders’ equity (deficit) 9,952 20,649
Common Class A    
Stockholders’ equity (deficit):    
Common stock, value 0 0
Common Class B    
Stockholders’ equity (deficit):    
Common stock, value $ 0 $ 0