v3.26.1
Note 2 - Government Tax Credits and Asset Grants (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2011
Clean Fuel Production Credit $ 1,200 $ 0  
Building [Member]      
Property, Plant, and Equipment, Useful Life (Year)     33 years