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Unaudited Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Current assets    
Cash and cash equivalents $ 6,078 $ 1,088
Accounts receivable 12 70
Other receivables 82 565
Inventory, net 1,141 1,036
Prepaid expenses and other current assets 490 665
Total current assets 7,803 3,424
Property and equipment, net 90 107
Operating lease right-of-use asset, net   11
Total assets 7,893 3,542
Current liabilities    
Accounts payable 1,292 873
Accrued and other current liabilities 472 1,239
Current portion of operating lease liabilities   12
Current portion of deferred revenue 41 39
Total current liabilities 1,805 2,163
Deferred revenue, net of current portion 62 79
Derivative liability   241
Total liabilities 1,867 2,483
Stockholders' equity    
Class A common stock, $0.001 par value; 150,000,000 shares authorized; 680,475 and 4,936 shares issued and outstanding as of June 30, 2025 and December 31, 2024, respectively 1  
Additional paid-in capital 191,690 172,425
Accumulated deficit (185,370) (171,699)
Accumulated other comprehensive loss (295) 333
Total stockholders' equity 6,026 1,059
Total liabilities and stockholders' equity $ 7,893 $ 3,542