v3.26.1
Note 6 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Income Tax Expense (Benefit) $ 0 $ 0  
Operating Loss Carryforwards 9,400    
Reserve for Uncertain Tax Positions 0 0  
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 2,200    
Liability for Uncertainty in Income Taxes, Current 0 $ 0 $ 0
Expiration Commencing, Tax Year 2034-2037 [Member]      
Operating Loss Carryforwards 600    
NOL Generated During 2017-2025 [Member]      
Operating Loss Carryforwards $ 8,800