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Income Taxes (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2025
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2022
Sep. 15, 2022
Operating Loss Carryforwards [Line Items]              
Operating loss carryforwards subject to expiration         $ 88,200    
Unrecognized tax benefits       $ 344 344    
Proceeds from sale of NOLs, gross $ 10,700            
Proceeds from sale of NOLs 871            
Benefit from income taxes 962 $ (962) $ (798)        
Loss on sale of NOL $ 91            
CEND              
Operating Loss Carryforwards [Line Items]              
Fair value market of tax NOLs       $ 36,100      
Effective income tax rate reconciliation       2.54%      
NOL annual limitation           $ 917  
Federal              
Operating Loss Carryforwards [Line Items]              
Net operating loss carryforwards, prior to write down       $ 43,700 57,900    
Net operating loss carryforwards       34,000      
Federal | Research Tax Credit Carryforward              
Operating Loss Carryforwards [Line Items]              
Tax credit carryforward         500    
Federal | CEND              
Operating Loss Carryforwards [Line Items]              
Net operating loss carryforwards           3,600 $ 3,100
Operating loss carryforwards, post acquisition           $ 459  
State | Research Tax Credit Carryforward              
Operating Loss Carryforwards [Line Items]              
Tax credit carryforward         100    
State | CEND              
Operating Loss Carryforwards [Line Items]              
Net operating loss carryforwards             $ 4,300
State | New Jersey              
Operating Loss Carryforwards [Line Items]              
Net operating loss carryforwards       19,400 24,600    
State | California              
Operating Loss Carryforwards [Line Items]              
Net operating loss carryforwards       9,200 9,200    
State | New York              
Operating Loss Carryforwards [Line Items]              
Net operating loss carryforwards       1,900 1,900    
Foreign Tax Authority | CEND              
Operating Loss Carryforwards [Line Items]              
Net operating loss carryforwards       $ 2,400 $ 2,300