v3.26.1
Note 13 - Income Taxes (Details Textual) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Operating Loss Carryforwards $ 37.9    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense 2.9 $ 1.6 $ 0.2
Prism Solar Technology [Member]      
Operating Loss Carryforwards $ 34.0    
Income Tax Jurisdiction, Domestic Federal [Member]      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%    
Open Tax Year 2022 2023 2024 2025    
Income Tax Jurisdiction, Domestic State and Local [Member]      
Open Tax Year 2020 2021 2022 2023 2024 2025    
Income Tax Jurisdiction, Foreign [Member]      
Open Tax Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025