Quarterly report [Sections 13 or 15(d)]

Stockholders' Equity (Stock-Based Compensation Expense) (Details)

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Stockholders' Equity (Stock-Based Compensation Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Stockholders' Equity    
Total stock-based compensation expense $ 1,756 $ 6,289
Employee and non-employee awards    
Stockholders' Equity    
Total stock-based compensation expense 543 2,607
Executive awards    
Stockholders' Equity    
Total stock-based compensation expense 133 180
Avenue    
Stockholders' Equity    
Total stock-based compensation expense 61 185
Checkpoint    
Stockholders' Equity    
Total stock-based compensation expense   1,956
Mustang    
Stockholders' Equity    
Total stock-based compensation expense 22 38
Journey    
Stockholders' Equity    
Total stock-based compensation expense 989 1,323
Other    
Stockholders' Equity    
Total stock-based compensation expense 8  
Research and development    
Stockholders' Equity    
Total stock-based compensation expense 23 1,342
Selling, general and administrative    
Stockholders' Equity    
Total stock-based compensation expense $ 1,733 $ 4,946