Annual report [Section 13 and 15(d), not S-K Item 405]

Note 14 - Income Taxes (Details Textual)

v3.25.4
Note 14 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Current Federal, State and Local, Tax Expense (Benefit) $ 0 $ 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00%
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount $ 3,020 $ 1,556
Deferred Tax Liabilities, Deferred Expense, Capitalized Research and Development Costs   $ 3,900
Domestic Tax Jurisdiction [Member]    
Operating Loss Carryforwards 217,045  
Open Tax Year   2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Domestic Tax Jurisdiction [Member] | Research Tax Credit Carryforward [Member]    
Tax Credit Carryforward, Amount 2,353  
Domestic Tax Jurisdiction [Member] | Generated Before 2018 [Member]    
Operating Loss Carryforwards 120,792  
Domestic Tax Jurisdiction [Member] | Generated After 2017 [Member]    
Operating Loss Carryforwards 96,253  
State and Local Jurisdiction [Member]    
Operating Loss Carryforwards 135,484  
State and Local Jurisdiction [Member] | Research Tax Credit Carryforward [Member]    
Tax Credit Carryforward, Amount 752  
Foreign Tax Jurisdiction [Member]    
Operating Loss Carryforwards $ 13,328  
Foreign Tax Jurisdiction [Member] | Inland Revenue, Singapore (IRAS) [Member]    
Open Tax Year   2020