v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Cash flows from operating activities:    
Net loss $ (8,623) $ (9,418)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 274 229
Stock-based compensation expense 647 945
Loss on disposal of property and equipment, net 5 0
Change in fair value of warrant liabilities 241 (1,618)
Amortization of debt discount and issuance costs 17  
Other 6 11
Changes in assets and liabilities:    
Accounts receivable, net 1,463 626
Unbilled receivables (738) 412
Inventory 763 1,193
Prepaid expenses and other current assets (1,401) (1,241)
Other long term assets (69) 128
Accounts payable 504 600
Deferred grant funding (457) 413
Deferred revenue 18 (80)
Due to related parties 6 (7)
Accrued expenses and other current liabilities (1,667) (1,435)
Operating lease liabilities, net 3 (7)
Net cash used in operating activities (9,008) (9,249)
Cash flows from investing activities:    
Purchases of property and equipment (242) (472)
Net cash used in investing activities (242) (472)
Cash flows from financing activities:    
Proceeds from issuance of debt, net 13,641  
Proceeds from exercise of stock options 42 33
Net cash provided by financing activities 14,486 5,582
Net increase (decrease) in cash and cash equivalents and restricted cash 5,236 (4,139)
Cash, cash equivalents and restricted cash, beginning of period 36,042 37,673
Cash, cash equivalents and restricted cash, end of period 41,278 33,534
Reconciliation of cash, cash equivalents, and restricted cash reported in the balance sheets    
Cash and cash equivalents 40,778 33,093
Restricted cash 500 441
Total cash, cash equivalents and restricted cash 41,278 33,534
Supplemental disclosure of noncash information:    
Issuance of warrants in connection with Loan Agreement, net 495  
Initial measurement of warrant liabilities   2,858
Unpaid purchase of property and equipment 28 509
Unpaid debt issuance and financing costs 15 238
Class A Common Stock | At-the-market Offering Program    
Cash flows from financing activities:    
Gross proceeds from issuance of common stock $ 803 129
Class A Common Stock | February 2025 Offering    
Cash flows from financing activities:    
Gross proceeds from issuance of common stock   $ 5,420