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Note 10 - Income Tax - Summary of Operating Loss Carryforwards (Details) - Sep. 30, 2024
USD ($)
CAD ($)
Domestic Tax Jurisdiction [Member]    
Operating loss carryforwards   $ 58,262,000
Domestic Tax Jurisdiction [Member] | Tax Year 2025 [Member]    
Operating loss carryforwards   16,000
Domestic Tax Jurisdiction [Member] | Tax Year 2039 [Member]    
Operating loss carryforwards   1,279,000
Domestic Tax Jurisdiction [Member] | Tax Year 2040 [Member]    
Operating loss carryforwards   5,904,000
Domestic Tax Jurisdiction [Member] | Tax Year 2026 [Member]    
Operating loss carryforwards   41,000
Domestic Tax Jurisdiction [Member] | Tax Year 2041 [Member]    
Operating loss carryforwards   9,366,000
Domestic Tax Jurisdiction [Member] | Tax Year 2042 [Member]    
Operating loss carryforwards   16,191,000
Domestic Tax Jurisdiction [Member] | Tax Year 2027 [Member]    
Operating loss carryforwards   84,000
Domestic Tax Jurisdiction [Member] | Tax Year 2044 [Member]    
Operating loss carryforwards   6,260,000
Domestic Tax Jurisdiction [Member] | Tax Year 2028 [Member]    
Operating loss carryforwards   171,000
Domestic Tax Jurisdiction [Member] | Tax Year 2029 [Member]    
Operating loss carryforwards   507,000
Domestic Tax Jurisdiction [Member] | Tax Year 2030 [Member[    
Operating loss carryforwards   633,000
Domestic Tax Jurisdiction [Member] | Tax Year 2031 [Member]    
Operating loss carryforwards   504,000
Domestic Tax Jurisdiction [Member] | Tax Year 2032 [Member]    
Operating loss carryforwards   496,000
Domestic Tax Jurisdiction [Member] | Tax Year 2033 [Member]    
Operating loss carryforwards   79,000
Domestic Tax Jurisdiction [Member] | Tax Year 2034 [Member]    
Operating loss carryforwards   1,432,000
Domestic Tax Jurisdiction [Member] | Tax Year 2035 [Member]    
Operating loss carryforwards   1,628,000
Domestic Tax Jurisdiction [Member] | Tax Year 2036 [Member]    
Operating loss carryforwards   1,637,000
Domestic Tax Jurisdiction [Member] | Tax Year 2037 [Member]    
Operating loss carryforwards   1,564,000
Domestic Tax Jurisdiction [Member] | Tax Year 2038 [Member]    
Operating loss carryforwards   2,580,000
Domestic Tax Jurisdiction [Member] | Tax Year 2043 [Member]    
Operating loss carryforwards   $ 7,890,000
Foreign Tax Jurisdiction [Member]    
Operating loss carryforwards $ 335,000  
Foreign Tax Jurisdiction [Member] | Tax Year 2039 [Member]    
Operating loss carryforwards 70,000  
Foreign Tax Jurisdiction [Member] | Tax Year 2040 [Member]    
Operating loss carryforwards 150,000  
Foreign Tax Jurisdiction [Member] | Tax Year 2041 [Member]    
Operating loss carryforwards 68,000  
Foreign Tax Jurisdiction [Member] | Tax Year 2042 [Member]    
Operating loss carryforwards 6,000  
Foreign Tax Jurisdiction [Member] | Tax Year 2044 [Member]    
Operating loss carryforwards $ 41,000