XML 46 R31.htm IDEA: XBRL DOCUMENT v3.23.1
Balance Sheet Detail - Property and Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Balance Sheet Detail    
Total property and equipment $ 30 $ 221
Less accumulated depreciation (28) (111)
Property and equipment, net 2 110
Research and development equipment    
Balance Sheet Detail    
Total property and equipment   158
Office equipment    
Balance Sheet Detail    
Total property and equipment $ 30 $ 63