v3.24.0.1
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Cash flows from operating activities    
Net loss $ (229,506) $ (229,813)
Adjustment to reconcile net loss to net cash used in operating activities    
Stock-based compensation 14,057 13,794
Depreciation and amortization 9,751 6,814
Loss from write-down of property, plant and equipment 7,159 6,846
Amortization of right-of-use assets 1,023 865
Commitment fee for SEPA settled by common stock - related party 0 1,061
Loss on debt extinguishment 3,510 942
Change in fair value of warrants 24,980 (848)
Change in fair value of derivatives - related parties (9,983) (10,880)
Other 1,850 (397)
Changes in operating assets and liabilities:    
Prepaid expenses 1,207 304
Inventory 6,190 (10,284)
Accounts receivable (1,713) 234
Vendor deposits (2,377) 6,808
Contract assets (6,322) (631)
Grant receivable (2,993) 0
Accounts payable (11,475) 19,516
Accrued expenses 19,349 5,079
Accounts payable and accrued expenses-related parties 0 (1,200)
Operating lease liabilities (1,130) (785)
Contract liabilities 1,804 3,957
Note payable 0 (19,637)
Other receivables (7,500) 0
Other (4,774) (1,387)
Net cash used in operating activities (145,018) (196,857)
Cash flows from investing activities    
Investment in notes receivable 0 (261)
Proceeds from notes receivable 0 3,163
Purchases of intangible assets (138) 0
Purchases of property, plant and equipment (29,323) (20,072)
Net cash used in investing activities (29,461) (17,170)
Cash flows from financing activities    
Proceeds from issuance of convertible notes payable – related party, net of discount 48,050 9,310
Proceeds received from the Senior Secured Term Loan, net of discount 0 97,992
Principal payments on finance lease obligations (96) (14)
Proceeds from equipment financing facility 0 4,216
Repayment of equipment financing facility (2,867) (1,913)
Issuance of common stock and warrants 192,167 43,626
Payment of equity issuance costs (5,003) 0
Proceeds from exercise of stock options 462 0
Proceeds from exercise of public warrants 0 7
Repurchase of shares from employees for income tax withholding purposes (633) (978)
Net cash provided by financing activities 227,918 139,544
Effect of foreign exchange on cash, cash equivalents and restricted cash 5 14
Net increase (decrease) in cash, cash equivalents and restricted cash 53,444 (74,469)
Cash, cash equivalents and restricted cash, beginning of year 31,223 105,692
Cash, cash equivalents and restricted cash, end of year 84,667 31,223
Non-cash investing and financing activities:    
Right-of-use operating lease assets in exchange for lease liabilities 718 2,112
Fixed assets acquired with finance lease 125 147
Accrued and unpaid capital expenditures 548 2,626
Issuance of convertible notes for interest paid-in-kind 10,327 6,267
Issuance of common stock upon settlement of Yorkville Convertible Notes 51,023 7,534
Accrued and unpaid debt issuance costs 0 5,536
Supplemental disclosures    
Cash paid for interest 15,133 5,766
Nonrelated Party    
Adjustment to reconcile net loss to net cash used in operating activities    
Issuance of convertible notes for interest paid-in-kind 4,972 1,886
Cash flows from financing activities    
Payment of debt issuance costs (3,046) (12,398)
Related Party    
Adjustment to reconcile net loss to net cash used in operating activities    
Issuance of convertible notes for interest paid-in-kind 36,903 10,899
Cash flows from financing activities    
Payment of debt issuance costs $ (1,116) $ (304)