v3.26.1
Note 4 - Discontinued Operations (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Apr. 30, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Common stock, par value   $ 0.001 $ 0.001  
GT Medical Technologies, Inc. [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Percentage of issued and outstanding capital stock       0.50%
GT Medical Technologies, Inc. [Member] | GT Medical Stock [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Estimated fair value   $ 0.2    
GT Medical Technologies, Inc. [Member] | Royalty [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Royalties payable $ 0.2