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Statement of Operations (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Income Statement [Abstract]        
Revenues $ 390 $ 254 $ 924 $ 467
Less: cost of goods sold 326 242 768 574
Gross profit (loss) 64 12 156 (107)
Operating expenses:        
General and administrative 306 305 1,030 1,383
Research and development 327 390 1,046 1,362
Sales and marketing 495 417 1,521 1,885
Non-cash expenses 520 53 1,508 832
Total operating expenses 1,649 1,165 5,104 5,462
Loss from operations (1,585) (1,153) (4,948) (5,568)
Other income (expenses), net:        
Interest income 13 16 86 22
State franchise taxes (1) 0 (2) 0
SEC settlements (147) 0 (426) 0
Net loss $ (1,720) $ (1,138) $ (5,290) $ (5,546)