v3.26.1
PROPERTY AND EQUIPMENT - Components of property and equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Property, Plant and Equipment [Line Items]    
Gross property and equipment $ 1,355 $ 1,463
Accumulated depreciation and amortization (1,308) (1,394)
Property and equipment, net $ 47 69
Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 3 years  
Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 5 years  
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Gross property and equipment $ 345 363
Machinery and equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 3 years  
Machinery and equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Property and equipment useful life 5 years  
Computer equipment and software    
Property, Plant and Equipment [Line Items]    
Gross property and equipment $ 794 882
Property and equipment useful life 3 years  
Furniture and fixtures    
Property, Plant and Equipment [Line Items]    
Gross property and equipment $ 148 150
Property and equipment useful life 5 years  
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Gross property and equipment $ 68 $ 68