v3.26.1
Note 2 - Summary of Significant Accounting Policies - Fair Value Measurements (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Marketable securities $ 1,196  
Total assets 1,208 $ 2
Royalties payable due to related parties 792  
Deferred stock issuance liability 647  
Total liabilities 1,439 1,090
Royalties payable due to related parties 792 792
Convertible notes payable   298
Fair Value, Inputs, Level 1 [Member]    
Marketable securities 1,196  
Total assets 1,208 2
Royalties payable due to related parties 0  
Deferred stock issuance liability 0  
Total liabilities 0 0
Royalties payable due to related parties   0
Convertible notes payable   0
Fair Value, Inputs, Level 2 [Member]    
Marketable securities 0  
Total assets 0 0
Royalties payable due to related parties 0  
Deferred stock issuance liability 0  
Total liabilities 0 0
Royalties payable due to related parties   0
Convertible notes payable   0
Fair Value, Inputs, Level 3 [Member]    
Marketable securities 0  
Total assets 0 0
Royalties payable due to related parties 792  
Deferred stock issuance liability 647  
Total liabilities 1,439 1,090
Royalties payable due to related parties   792
Convertible notes payable   298
Money Market Funds [Member]    
Cash Equivalents 12 2
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]    
Cash Equivalents 12 2
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]    
Cash Equivalents 0 0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]    
Cash Equivalents $ 0 $ 0