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PROPERTY AND EQUIPMENT - Property and Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
PROPERTY AND EQUIPMENT [Abstract]    
Property and equipment, gross $ 1,225 $ 1,351
Accumulated depreciation (1,102) (1,205)
Property and equipment, net 123 146
Production and Lab Equipment [Member]    
PROPERTY AND EQUIPMENT [Abstract]    
Property and equipment, gross 391 432
Tooling [Member]    
PROPERTY AND EQUIPMENT [Abstract]    
Property and equipment, gross 570 570
Computer Equipment [Member]    
PROPERTY AND EQUIPMENT [Abstract]    
Property and equipment, gross 183 229
Furniture and Fixtures [Member]    
PROPERTY AND EQUIPMENT [Abstract]    
Property and equipment, gross $ 81 $ 120