v3.26.1
Note 2 - Summary of Significant Accounting Policies - Fair Value Measurements (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Total assets $ 2 $ 2,815
Royalties payable due to related parties 792 9,068
Convertible notes payable 298  
Total liabilities 1,090 9,213
Current portion of royalties payable due to related parties   145
Fair Value, Inputs, Level 1 [Member]    
Total assets 2 2,815
Royalties payable due to related parties 0 0
Convertible notes payable 0  
Total liabilities 0 0
Current portion of royalties payable due to related parties   0
Fair Value, Inputs, Level 2 [Member]    
Total assets 0 0
Royalties payable due to related parties 0 0
Convertible notes payable 0  
Total liabilities 0 0
Current portion of royalties payable due to related parties   0
Fair Value, Inputs, Level 3 [Member]    
Total assets 0 0
Royalties payable due to related parties 792 9,068
Convertible notes payable 298  
Total liabilities 1,090 9,213
Current portion of royalties payable due to related parties   145
Money Market Funds [Member]    
Cash Equivalents 2 12
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]    
Cash Equivalents 2 12
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
Mutual Fund [Member]    
Cash Equivalents   2,803
Mutual Fund [Member] | Fair Value, Inputs, Level 1 [Member]    
Cash Equivalents   2,803
Mutual Fund [Member] | Fair Value, Inputs, Level 2 [Member]    
Cash Equivalents   0
Mutual Fund [Member] | Fair Value, Inputs, Level 3 [Member]    
Cash Equivalents   $ 0