v3.25.2
Income Taxes (Details Narrative) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items]            
Income tax expense $ 0 $ 0 $ 1 $ (55) $ (55) $ (82)
U.S. corporate income tax rate         21.00% 21.00%
Valuation allowance         $ 21,300  
GREECE            
Effective Income Tax Rate Reconciliation [Line Items]            
Net operating loss carryforwards         14,000  
DENMARK            
Effective Income Tax Rate Reconciliation [Line Items]            
Net operating loss carryforwards         25,500  
Domestic Tax Jurisdiction [Member]            
Effective Income Tax Rate Reconciliation [Line Items]            
Net operating loss carryforwards         78,400 $ 64,900
Credit carryforwards         700  
State and Local Jurisdiction [Member]            
Effective Income Tax Rate Reconciliation [Line Items]            
Net operating loss carryforwards         70,300 $ 56,800
Credit carryforwards         $ 200