v3.26.1
CONDENSED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Cash flows from operating activities:    
Net loss $ (4,567) $ (6,154)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 76 86
Stock-based compensation 112 208
Accrued interest   17
Amortization of short-term loan fees   34
Change in fair value of warrant liability   (267)
Loss on retirement of property and equipment   1
Changes in operating assets and liabilities:    
Accounts receivable (280) (585)
Inventory (994) (189)
Prepaid expenses and other current assets (6,111) 338
Other assets (119)  
Operating lease right-of-use assets ("ROUs") 202 382
Accounts payable 1,314 (1,080)
Accrued expenses (282) (11)
Accrued severance expense   (18)
Operating lease liabilities (241) (305)
Deferred revenue 37 (3)
Net cash used in operating activities (10,853) (7,546)
Cash flows from investing activities:    
Purchases of property and equipment (273) (37)
Net cash used in investing activities (273) (37)
Cash flows from financing activities:    
Repayments of short-term loan   (759)
Repayments of financed insurance (133) (121)
Warrant exercises 237  
Net proceeds from an ATM offering 31,813 15,772
Net cash provided by financing activities 31,917 14,892
Net increase in cash and cash equivalents 20,791 7,309
Cash, cash equivalents and restricted cash - beginning 10,401 1,353
Cash, cash equivalents and restricted cash - ending 31,192 8,662
Supplemental disclosure of cash flow information:    
Interest paid 1 267
Supplemental disclosure of non-cash investing and financing activities:    
Increase in ROUs and operating lease liabilities from lease modification   896
Decrease in ROUs from shares issued to landlord   25
Accrued interest in short-term loan payable   70
Financing of insurance premiums $ 352 $ 308