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SEGMENT INFORMATION (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Abstract]            
Revenue $ 158   $ 0   $ 169 $ 4
Less expenses (1):            
Employee related expenses [1] 2,505   1,516   4,708 3,303
Stock-based compensation [1] 1,741   1,278   3,147 2,287
Tool related expenses [1] 638   611   1,215 1,222
Consulting expenses [1] 123   107   330 256
Metrology and other outsourced research expenses [1] 386   441   944 902
Intellectual property related expenses 599   302   829 653
Other operating items [1],[2] 925   1,000   2,079 2,099
Operating margin (6,759)   (5,255)   (13,083) (10,718)
Other income (expense), net 423   288   674 542
Net loss $ (6,336) $ (6,073) $ (4,967) $ (5,209) $ (12,409) $ (10,176)
[1] Expenses classified as cost of revenue are included in the line items presented and not as a separate category.
[2] Other operating expenses include items not listed above separately. These include travel and entertainment, professional development, information technology costs, office related costs, depreciation, other research and development costs, other sales and marketing costs and other general and administrative costs.