Quarterly report [Sections 13 or 15(d)]

Note 4 - Restricted Cash Equivalents (Details Textual)

v3.25.2
Note 4 - Restricted Cash Equivalents (Details Textual)
Jun. 30, 2025
USD ($)
Jun. 18, 2025
USD ($)
Advance
Dec. 31, 2024
USD ($)
Aug. 27, 2024
USD ($)
Restricted Cash and Cash Equivalents Items [Line Items]        
Restricted cash equivalents $ 700,000   $ 600,000  
Hanmi Loan Agreement [Member]        
Restricted Cash and Cash Equivalents Items [Line Items]        
Loan agreement amount       $ 10,000,000
Hanmi Facility Agreement [Member]        
Restricted Cash and Cash Equivalents Items [Line Items]        
Loan agreement amount   $ 8,500,000    
Maximum number of advances | Advance   5    
Maximum amount available under single advance   $ 2,500,000