Annual report [Section 13 and 15(d), not S-K Item 405]

Note 2 - Significant Accounting Policies (Details Textual)

v3.26.1
Note 2 - Significant Accounting Policies (Details Textual)
12 Months Ended
Feb. 26, 2025
Dec. 31, 2025
USD ($)
Segment
Dec. 31, 2024
USD ($)
Dec. 31, 2025
CAD ($)
Accounting Policy [Line Item]        
Net Income (Loss)   $ (25,468,000) $ (25,430,000)  
Reverse stock split 1-for-30 reverse stock split      
Accumulated deficit   (566,435,000) (540,967,000)  
Cash and investment   4,100,000 6,700,000  
Negative shareholder's equity   (27,200) (4,500)  
Working capital     $ 5,100,000  
Negative working capital   $ (2,900,000)    
Number of operating segments | Segment   1    
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]   Chief Executive Officer [Member]    
Minimum [Member]        
Accounting Policy [Line Item]        
Estimated useful lives   3 years   3 years
Maximum [Member]        
Accounting Policy [Line Item]        
CDIC insures deposits       $ 100,000
FDIC insures deposits   $ 250,000    
Estimated useful lives   5 years   5 years