v3.26.1
Note 1 - Organization and Basis of Presentation (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 36 Months Ended
Nov. 25, 2025
Apr. 30, 2023
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Dec. 31, 2025
Milestone Payment Receivable     $ 90   $ 90 $ 3,724
Costs and Expenses     $ 27,314 $ 34,969    
PDE7 [Member] | National Institute on Drug Abuse (“NIDA”) [Member]            
Grants Receivable   $ 6,240        
Grants Receivable, Period   3 years        
Costs and Expenses         $ 2,300  
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Zaltenibart [Member]            
Proceeds from Sale of Productive Assets $ 240,000          
Milestone Benchmark One, If Milestone Achieves 510,000          
Milestone Benchmark Two, If Milestone Achieves 1,300,000          
Milestone Payment Receivable $ 1,800,000