v3.26.1
Note 2 - Summary of Significant Accounting Policies (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2026
USD ($)
shares
Jun. 30, 2025
USD ($)
shares
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Cash $ 1,100,000   $ 1,100,000   $ 14,400,000  
Marketable Securities 5,500,000   5,500,000   $ 0  
Net Income (Loss) Attributable to Parent $ (4,390,000) $ (2,783,000) (8,441,000) $ (7,013,000)    
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation     (4,724,000) (3,995,000)    
Noncash Charges     4,200,000      
Depreciation, Depletion and Amortization     1,548,000 1,091,000    
Stock-based compensation     2,070,000 759,000    
Write-Off Noncash Deferred Financing Costs     600,000 0    
Net Income (Loss), Excluding Noncash Charges and Credits     $ 4,200,000      
Decrease in Operating Expense, Percentage 15.00%   12.00%   28.00%  
Contract with Customer, Asset, after Allowance for Credit Loss $ 1,229,000   $ 1,229,000   $ 107,000 $ 372,000
Contract with Customer, Liability 539,000   539,000   566,000 $ 50,000
Debt Securities, Available-for-Sale, Amortized Cost $ 5,600,000   $ 5,600,000   0  
Intangible Asset, Finite-Lived, Useful Life 5 years   5 years      
Number of Reportable Segments     1      
Deferred Costs, Current $ 127,000   $ 127,000   888,000  
Payments of Financing Costs 0 $ 7,000 0 $ 139,000    
Unrecognized Tax Benefits $ 0   $ 0   $ 0  
Number of Operating Segments     1      
Pre-Funded Warrant [Member]            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares 1,398,173 0 1,398,173 0    
Software, In-Development, Internally Developed, and Purchased [Member]            
Intangible Asset, Finite-Lived, Useful Life 3 years   3 years      
Minimum [Member]            
Intangible Asset, Finite-Lived, Useful Life 3 years   3 years      
Maximum [Member]            
Intangible Asset, Finite-Lived, Useful Life 10 years   10 years