XML 49 R36.htm IDEA: XBRL DOCUMENT v3.25.1
Details of Certain Financial Statement Components - Property, plant and equipment, net (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Property, plant and equipment, net    
Property, plant and equipment, gross $ 2,472,000 $ 2,421,000
Less: accumulated depreciation (2,061,000) (2,108,000)
Total property, plant and equipment, net 411,000 313,000
Depreciation expense 140,000 200,000
Furniture, machinery and equipment    
Property, plant and equipment, net    
Property, plant and equipment, gross 1,972,000 2,009,000
Leasehold improvements    
Property, plant and equipment, net    
Property, plant and equipment, gross $ 500,000 $ 412,000