v3.26.1
Stockholders' Equity (Stock-based Compensation Expense) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Stockholders' Equity        
Total stock-based compensation expense $ 21 $ 45 $ 43 $ 83
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense        
Stockholders' Equity        
Total stock-based compensation expense $ 21 $ 45 $ 43 94
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense        
Stockholders' Equity        
Total stock-based compensation expense       $ (11)