v3.25.2
Basis of presentation (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Dec. 31, 2023
Feb. 04, 2021
Restructuring Cost and Reserve [Line Items]        
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001 $ 0.0001  
Working capital $ 27,800 $ 26,100    
Cash and cash equivalents 75 381 $ 3,200  
Cash Equivalents [Member]        
Restructuring Cost and Reserve [Line Items]        
Cash and cash equivalents $ 100 $ 400    
AMCI Acquisition Corp [Member]        
Restructuring Cost and Reserve [Line Items]        
Acquired percentage       100.00%
Common stock, par value (in dollars per share)       $ 0.0001